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Posts Tagged ‘science’

I’ve seen a lot of poorly written, poorly researched articles on health and exercise, for instance, suggesting that exercise is pointless in reducing weight, or that reducing weight itself is pointless.  Fortunately, I just saw an excellent article that doesn’t gloss over the subtleties, and presents a good look at how exercise and diet play a role in staying fit.  That’s the first article below; the other two are also useful in understanding the importance of exercise and a healthy lifestyle in maintaining both physical and mental fitness.
  • Weighing the evidence on exercise – “But a growing body of science suggests that exercise does have an important role in weight loss. That role, however, is different from what many people expect and probably wish. The newest science suggests that exercise alone will not make you thin, but it may determine whether you stay thin, if you can achieve that state. Until recently, the bodily mechanisms involved were mysterious. But scientists are slowly teasing out exercise’s impact on metabolism, appetite and body composition, though the consequences of exercise can vary. Women’s bodies, for instance, seem to react differently than men’s bodies to the metabolic effects of exercise. None of which is a reason to abandon exercise as a weight-loss tool. You just have to understand what exercise can and cannot do.”
  • Brain damage – “Being fat is bad for your brain. That, at least, is the gloomy conclusion of several recent studies. For example, one long-term study of more than 6,500 people in northern California found that those who were fat around the middle at age 40 were more likely to succumb to dementia in their 70s. A long-term study in Sweden found that, compared to thinner people, those who were overweight in their 40s experienced a more rapid, and more pronounced, decline in brain function over the next several decades.”
  • The claim – Lack of sleep increases weights – “Scientists have known for years that skimping on sleep is associated with weight gain. A good example was a study published in 2005, which looked at 8,000 adults over several years as part of the National Health and Nutrition Examination Survey. Sleeping fewer than seven hours a night corresponded with a greater risk of weight gain and obesity, and the risk increased for every hour of lost sleep.”

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