Lifestyle changes, intake of ultra-processed foods driving obesity at alarming rate: Eco Survey
How do ionic hair dryers work? Can they do what they promise?
If you’ve been in the market for a new hair dryer, you’ve likely seen advertising for ionic ones. Some claim to produce negative ions in the millions – with or without the help of added minerals like tourmaline.
The broader claim is usually that these ions break water molecules into micro-droplets, resulting in faster drying and reducing frizz to give you super smooth, shiny-looking hair.
Are ionic hairdryers actually capable of doing what they claim? To understand this, we need to briefly delve into some fundamentals.
Wait, what is an ion?
All matter is composed of invisible building blocks called atoms. But they’re not the smallest things we know of. Atoms contain subatomic particles – protons, neutrons and electrons.
Every atom has a nucleus, a very dense centre made up of protons and neutrons. The number of protons determines what chemical element the atom is. Hydrogen has one proton, carbon has six, oxygen has eight, and so on. Molecules are groups of two or more atoms that form a chemical element; an oxygen molecule consists of two oxygen atoms, for example.
How does all this relate to ions? This is where electric charge comes in. All subatomic particles have an electric charge. Protons have a positive charge (+), electrons have a negative charge (-) and neutrons are, as the name suggests, neutral.
The nucleus has a positive charge overall, thanks to all the protons. Negatively charged electrons surround the nucleus because opposite charges attract. This is called electrostatic force, and it is this force that actually keeps the electrons from flying off away from the nucleus.
But electrostatic force is pretty weak. When materials touch or are rubbed together, we get the triboelectric effect – electrons can transfer from one surface to the other. This produces ions: positively or negatively charged atoms or molecules. For example, a negative oxygen ion is oxygen that’s gained an extra electron.
What do ions have to do with hair, then?
For the most part, hair is composed of large complex molecules called keratin proteins. In turn, keratin molecules are composed of various chemical groups, such as carboxyl groups, amino groups and disulfide groups. These can gain or lose electrons.
So, when hair is dried with hot air or is subjected to friction, keratin fibres lose electrons via the triboelectric effect – they become positively charged.
Remember electrostatic force? When hair strands are positively charged they push away from each other, and you get frizz and fly-aways.
This is why hairdryer manufacturers have come up with the idea to neutralise the positive charge with negative ions from the hairdryer. In theory, this should return the charges in your hair to neutral and therefore reduce frizz.
How do hair dryers generate negative ions?
This part is just physics. Although different manufacturers may use slightly different methods, most ionic hairdryers use high voltage applied to a fine wire inside the hairdryer.
This creates a very strong electric field near the outlet where the hot air is blowing. It sends electrons into the surrounding air, producing negatively charged ions – mostly oxygen and nitrogen. The airflow then carries these ions out with the hot air.
To increase the number of negative ions produced during this process, some ionic hairdryers incorporate a mineral called tourmaline which emits negative ions naturally.
Although theory does support the claim that negative ions might neutralise the electrostatic charge of positively charged hair, in practice the amount of ionisation generated by the ionic hairdryers is very small because they’re limited by the voltage applied (typically 1,600V).
Sure, you could generate a huge amount of negative ions with enough electricity, but that’s beyond the scope of an everyday beauty appliance.
The effect would likely be subtle
Overall, this means the effects from an ionic hair dryer would likely be subtle.
Other factors will play a more significant role in smoothness – such as your hair type, hair quality (whether it has been chemically damaged by bleaching or dyes) and what products have been used on the hair prior to drying.
There is also no scientific proof that ionic hairdryers dry hair faster by breaking up water droplets more efficiently, although some studies have demonstrated that ions enhance the evaporation rate of water.
Ultimately, before investing in a very expensive hair dryer, you may want to look at improving the health of your hair in general. Negative ions – while plausible in theory – can only take you so far.![]()
Magdalena Wajrak, Senior Lecturer in Chemistry, Edith Cowan University
This article is republished from The Conversation under a Creative Commons license. Read the original article.
Fun ways to make your grandparents feel special
New research shows small lifestyle changes are linked to differences in teen mental health over time
Scarlett Smout, University of Sydney; Katrina Champion, University of Sydney, and Lauren Gardner, University of Sydney
Judging by recent headlines and policy ideas, you might think screen time is the only lifestyle behaviour influencing teen wellbeing.
But with young people struggling to deal with mounting mental health issues, it’s crucial we don’t get tunnel vision and instead remember all the lifestyle levers that can play a role.
Our research, published today, tracked Australian high school students from 71 schools across New South Wales, Queensland and Western Australia. Over time, improvements in sleep, fruit and vegetable intake, and exercise were associated with small but significant improvements in mental health.
The reverse was also true when it came to unhealthy behaviours like screen time, junk food, alcohol use and tobacco.
A comprehensive look at adolescent lifestyles
Our new study of more than 4,400 Australian high school students looks at a suite of lifestyle behaviours: sleep, moderate-to-vigorous physical activity, sedentary (inactive) recreational screen time, fruit and vegetable intake, consumption of junk food and sugary drinks, alcohol use and smoking.
Firstly, we asked year 7 (students aged 12–13) to report their levels of these lifestyle behaviours and to rate their psychological distress (a general indicator of mental ill-health) using a well-known measurement scale.
Then we examined how changes in each of the lifestyle behaviours between year 7 and year 10 (age 15–16) were linked to psychological distress levels in year 10. Importantly, we accounted for the level of psychological distress participants reported in year 7, as well as their lifestyle behaviours in year 7. This means we can see the average benefits associated with behaviour change, no matter where people started out.
Our research showed increases over time in healthy behaviours were associated with lower psychological distress. Conversely, increases in health risk behaviours were associated with higher psychological distress.
How much makes a difference?
On average, when looking at the change between year 7 and 10, every one-hour increase in sleep per night was linked to a 9% reduction in psychological distress.
Each added day of 60 minutes of moderate-to-vigorous physical activity per week was linked to a 3% reduction in psychological distress. Each added daily serve of fruit or vegetables was linked to 4% lower psychological distress.
By contrast, each added hour of screen time was linked to a 2% increase in psychological distress, as was each unit increase in junk food or sugary drinks.
Because drinking alcohol and smoking are less common in early adolescence, we only looked at whether they had or hadn’t drank alcohol or smoked in the past six months. We saw that switching from not drinking in year 7 to drinking in year 10 was associated with a 17% increase in psychological distress. Switching from not smoking to smoking was linked to a 36% increase in psychological distress.
It’s important to note our study can’t definitively say lifestyle behaviour change caused the change in distress. The study also can’t account for changes in a student’s circumstances such as in their home life or relationships. With the baseline survey done in 2019 and the year 10 survey done in 2022, there was also the potential impact of COVID.
But our longitudinal design (tracking the same subjects over an extended period) and the way we structured the analysis does help illustrate the relationship over time.
Our study didn’t measure vaping, but evidence shows that, like smoking, it has clear links with adolescent mental health.
What does this mean for teens and parents?
National guidelines for these behaviours set out aspirational targets based on optimum health goals. But movement guidelines and dietary guidelines might seem out of reach for many teens. Indeed, most participants in our study were not meeting guidelines for physical activity, sleep, screen time, and vegetable consumption in year 10.
What our research shows is that a healthy lifestyle change doesn’t have to be all or nothing.
Even relatively small changes – getting an extra hour of sleep each night, eating one extra serve of fruit or vegetables each day, cutting out one hour of screen time, or adding an extra day of moderate-to-vigorous physical activity per week – are linked to improvements in mental health. And stacking changes in multiple areas is likely to stand you in even better stead.
Parents can play a major role in shaping lifestyle behaviours (even into the teenage years!). Expense and time can be barriers, but anything parents can do within their means is a step in the right direction.
For example, modelling healthy social media use, making affordable changes to your grocery shop to improve nutritional content, or even introducing set bedtimes. And parents can gather information so young people can make positive choices around alcohol, tobacco and other substance use including vaping.
The bigger picture
Lifestyle changes can support better adolescent mental health, but they’re only one piece of the puzzle. We can’t place the burden of addressing the youth mental health crisis solely on teen lifestyles. There is plenty to be done at a school, community, and policy level to create a society that supports youth mental health.
Young people who are struggling with their mental health may need professional support, which parents and carers can support them to access. Teenagers or young people can also contact ReachOut or Kids Helpline directly for resources and support.![]()
Scarlett Smout, PhD Candidate (under examination) and Research Associate at The Matilda Centre for Research in Mental Health & Substance Use and Australia's Mental Health Think Tank, University of Sydney; Katrina Champion, Senior Research Fellow & Sydney Horizon Fellow, The Matilda Centre for Research in Mental Health and Substance Use and School of Public Health, University of Sydney, and Lauren Gardner, Senior Research Fellow & Program Lead of School-Based Health Interventions, University of Sydney
This article is republished from The Conversation under a Creative Commons license. Read the original article.
What does your musical taste say about your personality and lifestyle?
Adrian North, Curtin University
I’m quite used to receiving abuse concerning the content of this column, but in contrast my previous post (about why fans of heavy metal shouldn’t have been banned from a pub) seems to have caused some interest in what one can infer from somebody’s musical taste about their personality and lifestyle.
The simple answer is an awful lot! In 2010 I surveyed 36,518 people about their liking for 104 musical styles and their personality. Self-esteem was highest among fans of blues, funk, jazz, classical music, opera, and rap, but lowest among fans of heavy metal, indie, and punk.
The most creative fans were those who liked jazz, classical music, opera, and indie, whereas lower creativity was linked to liking for easy listening and chart pop. The hardest-working fans were those who liked country and pop, whereas those who regarded themselves as relatively lazy tended to like funk and indie.
The most sociable and outgoing fans were those who liked funk, country, rap, and dance music, whereas more reserved people tended to like classical music and heavy metal. The gentlest people in my sample liked opera, easy listening, and heavy metal, whereas the most headstrong tended to prefer dance music, indie, and punk. The most nervous fans were those who liked chart pop, whereas those who were most at ease with themselves preferred blues, funk, jazz, classical music, and heavy metal.
Links between musical taste and people’s more general lifestyles are also manifold and wide-ranging. Factors concerning money, education, employment and health tended to show that those who like high art music are wealthier, better educated, and in higher status jobs. Fans of jazz, opera and classical music in particular seem to lead blessed lives with the highest income, and greater access to financial resources (e.g. several bank accounts, credits cards, and owning shares in companies).
This greater wealth means they also spend more on food than others, and prefer to drink wine. As an academic, I might also add that this wealth is probably because they were more likely to have a Masters degree or PhD; and it is interesting that they are also more likely to give something back to the community by doing voluntary work.
But income and education can’t explain all the differences between the lifestyles of fans of different styles. Fans of opera and jazz were more likely than most to vote for right-wing political parties, but this conservatism was shared with country music fans. Similarly, despite their typically right-wing voting habits, fans of classical music and opera were among the most likely to favour development of green energy sources, whereas fans of hip hop and R&B, despite their radical counter-culture stereotype, were happiest with the fossil fuel status quo.
What is also interesting about these findings is the extent of overlap between those who like musical styles that are, on the surface, very different. Country and classical music fans overlap considerably in everything but their income, in reflection of a shared conservative worldview; and opera and heavy metal fans also united on more than just their love of dramatic music, as they share similarly creative and gentle personalities.
So someone’s musical taste does tell you a lot about them, but as these examples show, many of the stereotypes of the fans are nothing more than that. Moreover, the gross differences between fans that do exist in terms of, for example, income and conservatism, express themselves in some very specific ways in everyday attitudes and behaviour.![]()
Adrian North, Head of School of Psychology and Speech Pathology, Curtin University
This article is republished from The Conversation under a Creative Commons license. Read the original article.
We can change our brain and its ability to cope with disease with simple lifestyle choices
Yen Ying Lim, Florey Institute of Neuroscience and Mental Health
This is part of our series on Changing the Brain, about what’s happening in our brain in various mental states and how we can change it for the better and worse. You can read the other articles here.
Our life expectancy has increased dramatically over the past several decades, with advances in medical research, nutrition and health care seeing us live well into our 80s. But this longer life expectancy has also come at a cost, as the longer we live, the more likely we are to develop neurodegenerative diseases such as dementia.
Despite the lack of treatments for these diseases, there’s now a growing body of research to suggest there are a range of lifestyle changes we can adopt to help enhance our brain function. And even prevent brain disease.
Exercise
The effects of physical activity, particularly aerobic exercise, on brain health have been well studied. There’s now evidence to suggest engaging in physical activity can improve brain health through a phenomenon called neuroplasticity. This is where brain cells can more easily respond to disease or injury.
Physical activity can induce a cascade of biological processes that improve function of brain regions responsible for memory, and things such as decision making.
In particular, going for a run or bike ride (as opposed to only strength exercises such as weight training) have been shown to increase levels of “brain-derived neurotrophic factor”, a protein central to the growth and survival of brain cells. Brain imaging studies are also starting to confirm exercise training can result in a bigger hippocampus (the brain region responsible for memory) and improvements in memory.
Just as protein shakes may help muscles grow after exercise, the brain-derived neurotrophic factor may help to strengthen and generate brain cells. This in turn can increase the brain’s ability to cope with injury or disease.
Exercise strengthens our brains as well as our muscles. Kyle Kranz/UnsplashMeditation
Over the past decade, there’s been an explosion of interest in meditation and mindfulness as a treatment of mental health disorders, particularly depression and anxiety.
Some studies have suggested long-term engagement in meditation is associated with physiological brain changes (such as larger brain volumes and higher brain activity).
But the extent to which meditation is associated with better memory, or with long-term protection against brain diseases, remains to be determined.
Hypnosis
Hypnosis is one of the oldest forms of psychotherapy. It is typically used as an adjunct treatment for pain, and a range of anxiety disorders, including post-traumatic stress. Recent studies show that during hypnosis, changes in brain activity are detected in brain regions that govern attention and emotional control.
One small study (18 patients) suggested hypnosis substantially improved the quality of life of dementia patients after 12 months, with patients experiencing higher levels of concentration and motivation. But this result is very preliminary, and requires independent replication with larger numbers of patients.
It’s likely hypnosis plays an important role in reducing stress and anxiety, which may in turn improve focus, attention and wellbeing in general.
So what works?
The challenge with studying the effects of lifestyle changes on brain health, particularly over a long period of time, is the large degree of overlap across all lifestyle factors. For example, engaging in physical activity will be related to better sleep and less stress – which also improve our memory and thinking function.
Similarly, better sleep is related to improved mood. It may make people feel more motivated to exercise, which may also lead to better memory and thinking function.
The extent to which we can truly determine the contribution of each lifestyle factor (sleep, physical activity, diet, social engagement) to our brain health remains limited.
But a wide range of lifestyle factors that are highly modifiable such as physical inactivity, obesity, chronic stress and high blood pressure can have far-reaching effects on our brain health. After all, it is mid-life high blood pressure, obesity and physical inactivity that can increase our risk of dementia in later life.
Recently, a large study of 21,000 American adults aged over 65 suggested the prevalence of dementia fell significantly from 11.6% to 8.8% (nearly a 25% reduction) over 12 years (from 2000 to 2012). The researchers suggested this decrease in prevalence may be due to increases in education and better control of risk factors for high cholesterol and high blood pressure.
This provides some hope that we can, to a certain extent, take charge of our brain health through engagement in a wide range of beneficial activities that seek to improve mental function, improve heart health, or reduce stress.
It’s never too early to start investing in the health of our brains, particularly when these lifestyle changes are easily implemented, and readily accessible to most of us.
If you are interested in being a part of a study on brain health in middle-aged Australians, please join us at the Healthy Brain Project.![]()
Yen Ying Lim, Research Fellow, Florey Institute of Neuroscience and Mental Health
This article is republished from The Conversation under a Creative Commons license. Read the original article.
Milind Soman's mother does skipping every day even at 86
More education leads to a healthier lifestyle
Jinhu Li, The University of Melbourne
It is recognised that healthy habits account for large differences in health outcomes. Unhealthy behaviour has been cited as the main predictor of premature and preventable disease.
But this raises an important, policy-related question. Why do some people invest more in a healthy lifestyle than others?
Health economists argue that better educated people are more likely to choose healthier lifestyles. This is in part because future returns for healthy behaviour (in terms of both health and lifetime earnings) are higher for the better educated, thus leading them to invest more in a healthy lifestyle.
People of higher educational background are on average less likely to smoke, abuse alcohol, and will exercise more, eat healthier foods, and have more frequent health checks than the average population.
This can be explained by a variety of different reasons. For instance, students with healthier lifestyles may be more efficient in acquiring knowledge so they tend to perform well in their education. One could also imagine that people who value future consumptions more than current consumption will stay in school for longer, work more at younger ages and invest more in positive health-related behaviours.
New research in the area
Most of the existing evidence cannot truly separate the true effect of education itself on health habits from other confounding factors as mentioned above.
My colleague and I have recently conducted research to address this important question. We used an econometric technique to empirically identify the causal effect of education on a range of health behaviours among Australian adults aged 22 to 65. We rely on school reforms in Australia on minimum compulsory school-leaving age as a natural experiment to identify this causal relationship.
This research shows that among Australians, there is a sizable effect of staying an additional year in school on later health habits, including diet, exercise, and the decision to engage in risky health behaviours.
Results also show that the positive effect of staying an additional year in school on health behaviours is larger for Australian women than for Australian men. Interestingly, previous studies from UK and Germany have found the opposite, that is that the health benefits from staying an additional year in school are larger for men than for women in these two countries.
Does context matter?
While we found a positive effect of education on health among Australians, previous studies from other countries indicate this is not necessarily true in different countries.
Studies in Denmark and South Korea found similar evidence as ours, but no such evidence has been found in the US, the UK and Germany. This might be a reflection of the differences in the education and health care systems, or an interaction between these two systems, across different countries.
Not only the context of the residing country but also the context in terms of early-life family circumstances may moderate the causal effect of education on health behaviours. Our study demonstrates that the magnitude of the education effect is larger for people from a poorer background when they were about 14 years old.
Potential mechanisms
There are many theories to why more education will lead to better health behaviours. We provide evidence that one of the reasons is because more education raises the individual’s conscientiousness levels and the perceived sense of control over one’s life, which in turn contributes to adopting healthier lifestyles.
The intuition is that individual with different education levels may differ in their psychological capacity to make behaviour changes. This echoes some psychological theories which claim that in order to adopt certain behaviour or change certain lifestyles, individuals need to be “ready” to change and feel able to do so.
This new finding may also explain why in previous studies other important individual attributes such as cognition function and knowledge can only explain some, but not all, of the causal effect of education on health behaviours.
Policy implications
The direct implication of these findings is that an increase in spending on education can lead to the overall improvement of the nation’s health. This provides a way of saving money for our health system, given that preventable diseases are often directly related to health habits.
While we have found an important effect of education on later health behaviours for people who were directly affected by changes in the compulsory schooling laws in Australia, we have also demonstrated that there is a considerable difference in the education effect across different groups of individuals.
Future research – especially qualitative research – should come back to investigate how different predetermined characteristics and early home environments can moderate the causal effect of education on health behaviours.
Given that an additional year of schooling also caused a change in psychological traits that are known to govern healthy behaviour, there is scope for later policy interventions to try to improve personality traits that are related to healthy habits.![]()
Jinhu Li, Research Fellow, The University of Melbourne
This article is republished from The Conversation under a Creative Commons license. Read the original article.
Hairstyle Tips



Makeup Spot: Hairstyle can make or break the image of someone, even if you have more hair in the world, indecent style to make bland, boring and even washed away. Hairstyles and hair cuts, get younger nerdy, rugged or masculine, intelligent and attractive. You can make all of the hot time with the fingers curled your hair look. Use generate a little styling cream to damp hair into waves and have your hair to air dry. If your hair is stubborn, you can choose to paint in order to tame them. Hair cuts for young people, although all the time and the changing tastes of the generation, always tends a haircut fashion that is difficult to copy for older people and seem to be still high. The funky teen hair always seems just as he was taken off the runway. Enriched did capture with rich colors, elegant hairstyle teenage much entirely to an era of style. Top hairstyles among young people today are more in vogue than ever, and cover a wide range of lengths, shapes and textures. Haircuts teen was not reduced. In fact, many young people are now considered the drainage of the shorter hair boy. But one thing is all the time, the short teen hair style is always a fashionable hairstyle. Each color requires fashionable hairstyle and the same goes for haircuts among teenagers. Adding color can be as simple as a few highlights or low points, or it may appear as dramatic changes



How to host a meal if one of your guests has an eating disorder or is anxious around food
Kathleen de Boer, Swinburne University of Technology; Courtney P. McLean, Monash University, and Inge Gnatt, Swinburne University of Technology
As the festive season approaches, perhaps you’re thinking of hosting friends and family.
You know at least one person who’ll attend who becomes anxious around food and another with an eating disorder.
So, how to host and make sure everyone feels comfortable and supported?
Perhaps you’ve already hosted someone with food anxiety or an eating disorder without even knowing.
First, some definitions
Food anxiety refers to fear or anxiety in response to eating food. This could relate to certain textures and smells, or fear of choking or vomiting. These fears and anxieties can be intense and are associated with mental health conditions, including avoidant/restrictive food intake disorder.
For others, anxiety about food might be based on fear of the impact food could have on their body shape and size. This kind of food anxiety is closely associated with diagnosable eating disorders such as anorexia nervosa and bulimia nervosa.
Eating disorders are among the most rapidly increasing mental health diagnoses in the world, and can be present at any shape or size. These disorders involve negative thoughts about one’s weight, shape and eating. Behaviours people can experience include skipping meals, or feeling like they can’t stop eating.
Eating disorders can have significant impacts on someone’s life, including withdrawing from social circles and hobbies. They’re associated with high mortality rates.
Just because someone experiences some food anxiety, it does not mean they have a mental health diagnosis. It’s also important to consider how this anxiety impacts their life and the level of distress it causes them.
Hiding is common
It’s likely you’ve shared a meal with someone who has an eating disorder, who might be in recovery, or has anxiety around food. A lot of the time, you may not be able to tell, and they might try to hide it because of shame or guilt.
Your nephew at last week’s family barbecue might have binge eating disorder. The cousin who you caught up with for dinner might have a fear of choking and only eats soft foods.
You might not have noticed as people tend to be skilled at hiding their food anxiety. Some common strategies include avoiding shared mealtimes, only choosing certain foods, or saying they have already eaten and aren’t hungry.
So, if you’ll likely share a meal with someone with food anxiety or an eating disorder in the future, how can you host compassionately?
Is it worth adjusting the menu?
Unless someone has made specific requests, it is OK to roll on as usual. It can be helpful to invite guests to bring anything that meets their specific needs. Having variety and allowing people to serve themselves may also reduce food anxiety.
The goal of this meal is not to solve someone’s food anxiety, but to create a safe eating environment for all.
What not to say
At mealtimes, it might be common to comment on the amount or type of food someone is eating, or the way they eat it.
This “food talk” might be comments such as, “why are you only eating potatoes?” These comments can draw unwanted attention to someone’s food choices, increasing food anxiety.
Then there are comments on people’s bodies, shapes and sizes. Or sometimes people comment on the need to diet or skip meals after eating.
For example, people might say “that was so much food, you won’t need dinner tonight”.
While some of these comments may not be intended to hurt, these attitudes often perpetuate harmful messages about what we should and should not eat, how much we should eat, and even how we should look.
These comments can even contribute to body dissatisfaction, a key risk factor in developing eating disorders. Negative food and body talk can also contribute to increased anxiety.
Even commenting on your own eating and body can be a problem. For instance saying, “I need to skip dinner to make up for eating all this” might hurt the people you’re sharing a meal with, particularly if they have an eating disorder. This is because it reinforces and normalises food restriction.
A good rule of thumb is to avoid commenting on people’s food and bodies. And that goes for complimenting someone’s body.
What to say instead
As a guest or a host, you can contribute to developing a safe culture around food for everyone. This includes replying to unsolicited food or body comments, whether aimed at you or someone else.
Sometimes replying can be tricky for the person with a food anxiety or eating disorder, so you can also speak up even when the comment isn’t directed at you.
You can say:
- Would it be OK if we didn’t chat about my/their food/weight/body at the moment?
- I’m working hard to focus less on my body at the moment. Let’s talk about something else.
- I find it uncomfortable when you mention my/my friend’s weight/body/eating.
- I hear what you’re saying, but let’s steer clear from discussing my/their appearance/weight/eating.
Some of these suggestions might sound awkward, so offer them gently and personalise however you need.
Why this is important
Ultimately, setting boundaries with family and friends helps create more balance and compassion in how we talk about food and bodies. This can challenge some of the outdated and harmful messages that have become normalised.
Sharing mealtimes are important opportunities to connect with loved ones. Let’s make these experiences safe and inclusive.
If this article raised any concerns for you or someone you know, contact the Butterfly Foundation on 1800 33 4673.![]()
Kathleen de Boer, Clinical Psychologist, Lecturer in Clinical Psychology, Swinburne University of Technology; Courtney P. McLean, Research Fellow, School of Psychological Sciences, Monash University, and Inge Gnatt, Psychologist, Lecturer in Psychology, Swinburne University of Technology
This article is republished from The Conversation under a Creative Commons license. Read the original article.
5 heartwarming gestures for your best friend
Hope Is the Most Impactful Emotion in Determining Long-Term Economic, Social Outcomes


A healthier heart can protect your brain too. 5 lifestyle changes to prevent dementia
Alexandra Wade, University of South Australia; Ashleigh E. Smith, University of South Australia, and Maddison Mellow, University of South Australia
When we think of dementia, we often fear a loss of control. But the reassuring news is up to 40% of dementias can be prevented or delayed if we change our health habits.
Nearly half a million Australians are living with dementia. Without a cure, this number is expected to reach 1.1 million by 2058.
Dementia shares key risk factors with cardiovascular (of the heart and blood vessels) disease, including high blood pressure, high blood sugar, being overweight and smoking. Inflammation and oxidative stress (where protective antioxidants are losing their fight with damaging free radicals) follow. This damages blood vessels and reduces the flow of blood and oxygen to the brain.
Without enough oxygen, brain cells can’t function effectively, and eventually die. Reduced blood flow also leaves the brain vulnerable to the plaques and tangles seen in forms of dementia.
But by changing our habits, we can both improve heart health and reduce the risk of dementia. Here are five lifestyle changes we can make now.
1. Eat 2–3 serves of oily fish each week
Oily fish, like salmon, sardines and mackerel are rich in omega-3 polyunsaturated fatty acids. Omega-3’s have anti-inflammatory effects and have been shown to significantly reduce blood pressure.
Omega-3s are also needed to support the structure and function of our brain cells and are “essential nutrients”. This means we need to get them from our diet. This is especially true as we age, because reductions in omega-3 intake have been linked to faster rates of cognitive decline.
2. Eat plant foods with every meal
Plant foods – like leafy greens, extra virgin olive oil, blueberries, nuts and pulses - contain a range of vitamins and minerals, including polyphenols, flavonoids, carotenoids, vitamin C and vitamin E. These micronutrients have both antioxidant and anti-inflammatory effects that protect and improve our blood vessel functioning.
Diets high in plant foods, like the Mediterranean diet, have been shown to improve blood pressure, glucose regulation and body composition, and have also been linked to lower rates of cognitive decline, better markers of brain health and lower risk of dementia.
3. Eat less processed food
On the other hand, saturated fats, refined carbohydrates and red and processed meats are believed to trigger inflammatory pathways and highly processed foods have been linked to hypertension, type 2 diabetes and obesity.
Eating more of these foods means we’re also likely to miss out on the benefits of other foods. Whole grains (like whole oats, rye, buckwheat and barley) provide fibre, vitamin B, E, magnesium and phytonutrients which have anti-inflammatory and antioxidant properties. Refined grains (like white bread, rice and pasta) are highly processed, meaning many of these beneficial nutrients are removed.
4. Get physical and make it fun
Physical activity can reduce inflammation and blood pressure, while improving blood vessel functioning. This helps the body deliver more oxygen to the brain, improving memory and other cognitive functions affected by dementia.
Guidelines suggest adults should engage in physical activity on most days, break up long bouts of inactivity (like watching TV) and incorporate some resistance exercises.
The key to forming long-term exercise habits is choosing physical activities you enjoy and making small, gradual increases in activity. Any movement that raises the heart rate can be classified as physical activity, including gardening, walking and even household chores.
5. Quit smoking
Smokers are 60% more likely to develop dementia than non-smokers. This is because smoking increases inflammation and oxidative stress that harm the structure and function of our blood vessels.
Quitting smoking can begin to reverse these effects. In fact, former smokers have a significantly lower risk of cognitive decline and dementia compared to current smokers, similar to that of people who have never smoked.
Is it too late?
It’s never too early, or too late, to begin making these changes.
Obesity and high blood pressure in midlife are key predictors of dementia risk, while diabetes, physical inactivity and smoking are stronger predictors later in life. Regular physical activity earlier in life can reduce blood pressure and decrease your risk of diabetes. Like giving up smoking, changes at any stage of life can reduce inflammation and change your dementia risk.
Little by little
It can be overwhelming to change your whole diet, start a new exercise program and quit smoking all at once. But even small changes can lead to significant improvements in health. Start by making manageable swaps, like:![]()
- use extra virgin olive oil in place of butter, margarine and other cooking oils
- swap one serve of processed food, like chips, white bread, or commercial biscuits, for a handful of nuts
- swap one serve of meat each week for one serve of oily fish
- swap five minutes of sedentary time for five minutes of walking and slowly increase each day.
Alexandra Wade, Research associate, University of South Australia; Ashleigh E. Smith, Associate professor - Healthy ageing, University of South Australia, and Maddison Mellow, PhD candidate, University of South Australia
This article is republished from The Conversation under a Creative Commons license. Read the original article.
Japanese Woman Offers to Hold New Mother’s Baby so Exhausted Travelers Can Finish Their Meal
credit – Maggie Boynton, retrieved from TikTok
Maggie Boynton and her husband with their daughter in front of Mount Fuji – credit Maggie Boynton, retrieved from TikTokDozens of Disabled Californians Sail for the First Time to Experience the Weightlessness of the Water
Credit photographer Larry Rosa – at Challenged Athletes Foundation eventLove is good for health

- (1) Strengthens the immune system. Biochemical reactions experienced by the body of a person when being in love help improve health and help to "strengthen the immune system," according to experts. With love our quality of life is better and tend to get sick less, and that negative feelings are outweighed by the positive and our body works better.
- (2) Influences on the rapid recovery. We have seen that sick people who have someone to love them and watch for them, have a faster recovery than patients who have no affection from anyone. (3) Improves quality of life. We are more likely to get sick and depressed when we have problems and we are alone. However, the love we prolong life. Being loved makes problems feel lighter with the support of others.
- (4) Energy and stress. According to experts, the emotional well it feels like to be able to give love and helping others makes people feel more energy and fighting stress.
- (5) A feeling of great comfort. From the endocrinological point of view, love brings change for the better. As Jesus says Dr. Rocca, Ricardo Palma Clinic, "the first thing you are beta releases endorphins that trigger when you're in love, and are responsible for the feeling of great comfort. (6) Love rejuvenates. "The hormones, the nervous system and skin, forming a narrow triangle, so the separation of estrogen in women improves hair, nails, skin," says Sandro Tucto dermatologist.
- (7) Fewer doctor visits. Another study found that couples who have spent more time together, make fewer doctor visits. The psychiatrist Enrique Galli said that "stable relationships get colds less than singles, while elderly couples suffer less pain than the lonely elderly. This is due to segregation of hormones that allow for greater resistance to pain. "
- (8) Making love, health benefits. Keeping sexually active and safe, influences our physical and emotional state is very important to our overall health. It is scientifically proven that people who frequently make love, get sick less and are happier. The list of health benefits that are attributed to sex as therapeutic activity include: well-being, improves self-esteem, makes you look younger, is a natural pain reliever, improves interpersonal relationships, reduces snoring, strengthens immune system, increases energy, relieves symptoms of depression, anxiety and psychosomatic disorders. So now you know, since love helps heal, self-medication is recommended a good dose of love every day to live healthy and happy. Source: Forum Human Health, Image: flickr.com
Physical Activity and Sedentary Lifestyle Have Greater Impact on Lifespan Than Our Genes

Beard Styles for men
Beard can also change the appearance of face look. It increases your personality and makes you different from others. As many boys watch some other to have bearded and they try to adapt the same. But it is not necessary that a beard suits to one will also suit to you. Beard shape depends on the face’s shape. There are so many different type of beard that you can choose and apply to your face. The trim beard is in fashion and liked by many women. A man looks matured by keeping trimmed beard. Goatee beard is also popular. It is also called as French cut beard. This beard gives a unique identity to your personality. It makes you unique from rest. It is the best option to hide wrinkles on your chin. Handle Bar Moustache: This style is adopted by the guys whose have commanding personalities. Most of the army officers can be seen in this style. The wrestlers also keep such types of moustache. This type of moustache helps them to increase the confidence level. So, keeping beard is not a sign of rough personality these days. Go to a reputed salon and consult your barber and enjoy keeping the beard that suits to your face. Tips to maintain a beard: (1) The first thing when you are planning to keep a beard, it should be very clear that what the appearance you want for your face. See yourself in the mirror with keeping the idea to grow a beard. The beard should be according to your face shape. Before keeping a beard make sure that the beard will suit to your face or not.(2) If you are planning to keep a beard, stop shaving. I know, it is very easy to say, but difficult in practice. If you allow yourself to stop shave and let the beard to grow in full grace, it will help you to lot in selection of style. (3) Re-examine your face after weeks and weeks. Two weeks are more than enough. The disassembled beard on face can lost your face appearance in the beginning, but keep patience. Once you have full beard, then consult to beard parlor and go for proper style. (4) When you will re-examine your face, you can find the areas where hair grows more and best. These can be in the form of chest hair or sparse cheek growth. Re-examination of face will help to recognize the strengths and shape of hair. (5) Now there is time to give a shape to beard. Now you can go to the reputed beard parlor and consult with him that what type of beard will be suited to your face. It all depends upon your cheek growth, face shape, chin shape and also on mustache. (6) After selecting a style, allow the beard to grow with open mind. Thus by choosing the above mentioned tips, you can fulfill the dream to grow and maintain a beard, which make your appearance attractive. Source: Medley News, Image: flickr.com