Is getting a consistent good night’s sleep one of the best ways to maintain a healthy weight over time? A recent study discussed in the New York Times which found that people generally eat more, along with worse foods, and at the wrong times, to compensate for that loss of sleep, found compelling evidence that this indeed the case. Here are a few key excerpts from the article:
Notably, the researchers found that staying up late and getting just five hours of sleep increased a person’s metabolism. Sleep-deprived participants actually burned an extra 111 calories a day, according to the findings published last week in The Proceedings of the National Academy of Sciences.
But even though we burn more calories when we stay awake, losing sleep is not a good way to lose weight. The light sleepers ended up eating far more than those who got nine hours of sleep, and by the end of the first week the sleep-deprived subjects had gained an average of about two pounds.
It also turns out that not only do people generally eat more when getting less sleep, but we consumed food that was unhealthier for us and ate bigger meals at the wrong times of day:
In fact, sleep-deprived eaters ended up eating more calories during after-dinner snacking than in any other meal during the day. Over all, people consumed 6 percent more calories when they got too little sleep. Once they started sleeping more, they began eating more healthfully, consuming fewer carbohydrates and fats. Dr. Wright noted that the effect of sleep deprivation on weight would likely be similar in the real world although it might not be as pronounced as in the controlled environment. The researchers found that insufficient sleep changed the timing of a person’s internal clock, and that in turn appeared to influence the changes in eating habits. “They were awake three hours before their internal nighttime had ended,” Dr. Wright said. “Being awakened during their biological night is probably why they ate smaller breakfasts.”
The effect was similar to the jet lag that occurs when a person travels from California to New York.
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