Babies' sleep tied to childhood obesity - Yahoo! News
Lack of sleep and obesity seem to go hand in hand even in children. "A new Harvard study finds that babies and toddlers who sleep fewer than 12 hours daily are at greater risk for being overweight in preschool, startling evidence that the link between sleep and obesity may affect even very young children.
TV viewing heightened the effect. The children who slept the least and watched the most television had the greatest chance of becoming obese.
...Sleep's impact on appetite hormones may explain the effect.... In prior studies, sleep-deprived adults produced more ghrelin, a hormone that promotes hunger, and less leptin, a hormone that signals fullness.
TV viewing is thought to increase the risk of obesity both because it takes time away from calorie-burning play and because of food ads for snacks and fast food."
TV viewing heightened the effect. The children who slept the least and watched the most television had the greatest chance of becoming obese.
...Sleep's impact on appetite hormones may explain the effect.... In prior studies, sleep-deprived adults produced more ghrelin, a hormone that promotes hunger, and less leptin, a hormone that signals fullness.
TV viewing is thought to increase the risk of obesity both because it takes time away from calorie-burning play and because of food ads for snacks and fast food."
posted at 3:18 PM
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