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7 Reasons Why Getting Enough Sleep May Help You Lose Weight

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By Caroline Pullen

If you're trying to lose weight, the amount of sleep you get may be just as important as your diet and exercise.

Unfortunately, many people aren't getting enough sleep. In fact, about 30 percent of adults are sleeping fewer than six hours most nights, according to a study of U.S. adults (1).


Interestingly, mounting evidence shows that sleep may be the missing factor for many people who are struggling to lose weight.

Here are seven reasons why getting enough sleep may help you lose weight.

1. Poor Sleep Is a Major Risk Factor for Weight Gain and Obesity

Poor sleep has repeatedly been linked to a higher body mass index (BMI) and weight gain (2).

People's sleep requirements vary, but, generally speaking, research has observed changes in weight when people get fewer than seven hours of sleep a night (3).

A major review found that short sleep duration increased the likelihood of obesity by 89 percent in children and 55 percent in adults (3).

Another study followed about 60,000 non-obese nurses for 16 years. At the end of the study, the nurses who slept five or fewer hours per night were 15 percent more likely to be obese than those who slept at least seven hours a night (4).

While these studies were all observational, weight gain has also been seen in experimental sleep deprivation studies.

One study allowed 16 adults just five hours of sleep per night for five nights. They gained an average of 1.8 pounds (0.82 kg) over the short course of this study (5).

Additionally, many sleep disorders, like sleep apnea, are worsened by weight gain.

It's a vicious cycle that can be hard to escape. Poor sleep can cause weight gain, which can cause sleep quality to decrease even further (6).

Summary: Studies have found that poor sleep is associated with weight gain and a higher likelihood of obesity in both adults and children.

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