Stay Slim with Sleep

Why lack of sleep could be causing you to eat more than you really need

April 1, 2013
Stay Slim with Sleep

Here’s another reason to catch a couple more z’s: According to new research published in the journal Sleep, the fewer hours you log between the sheets (sleeping, that is), the more difficult it is to gauge portion control in your diet. The study found that sleeping less than the recommended seven to eight hours per night makes it harder for women, specifically, to put the brakes on a meal once they start eating. This is because the lack of sleep affects levels of GLP-1, a hormone responsible for letting the brain know when the stomach is full. This is slightly different from the effect experienced by men, who report being hungrier than usual the day after due to higher levels of ghrelin. Regardless of the mechanics, both are diet-busting scenarios. You’ll need to pay extra attention to your portion sizes the day after disrupted sleep to stay in your best shape.