New York Labelling healthy foods with smiley faces and offering small prizes for buying nutritious items can make kids purchase more of such foods and eat them too, suggests a new research. “It looks like we found a very promising, low-cost and effective way of improving the nutrition of elementary school children,” said study author Robert Siegel from the Cincinnati Children’s Hospital Medical Centre. “This type of programme may be a useful component in schools trying to improve the nutrition and health of their students,” Siegel pointed out. For the study, the researchers designed a two-phase intervention to improve healthful eating among kindergarten through sixth-grade students at an inner-city school in Cincinnati. The first phase consisted of placing green smiley face emoticons by the most nutritious foods in the school cafeteria, including fruits, vegetables, plain white fat-free milk and an entree with whole grains. Three months later, researchers introduced the concept of a “Power Plate,” which consisted of the four healthy foods. Children who selected a Power Plate could receive a small prize, such as a sticker, temporary tattoo or mini beach ball. Results showed plain milk purchases increased from 7.4 percent to 48 percent of total milk sales. Meanwhile, chocolate milk selection decreased from 86.5 percent to 44.6 percent of total milk sales. In addition, fruit selection increased by 20 percent from 1 to 1.2 items per student per day, and vegetable selection rose by 62 percent from 0.74 to 1.2 items per student per day. Power Plate selection increased 335 percent from baseline. The findings were presented at the Pediatric Academic Societies (PAS) annual meeting in San Diego. — IANS. Source: Article
Sleep clears waste in the brain and helps it stay fit
WASHINGTON – Like a janitor sweeping the halls after the lights go out, major changes occur in the brain during sleep to flush out waste and ward off disease, researchers said Thursday. The research in the journal Science offers new answers to explain why people spend a third of their lives asleep and may help in treating dementia and other neurological disorders. In lab experiments on mice, researchers observed how cellular waste was flushed out via the brain's blood vessels into the body's circulatory system and eventually the liver. These waste products included amyloid beta, a protein that when accumulated is a driver of Alzheimer's disease. In order to help remove the waste, cerebral spinal fluid is pumped through brain tissue. The process is sped along during sleep because the brain's cells shrink by about 60 percent, allowing the fluid to move faster and more freely through the brain. The whole operation takes place in what researchers call the glymphatic system, which appears to be nearly 10 times more active during sleep than while awake. "The brain only has limited energy at its disposal," said lead author Maiken Nedergaard of the University of Rochester Medical Center. "You can think of it like having a house party. You can either entertain the guests or clean up the house, but you can't really do both at the same time." Co-authors of the study, which was funded by the US National Institutes of Health, came from Oregon Health and Science University and New York University. AFP, Source: http://sputniknews.com/, Image: https://www.flickr.com/
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