Myth: If you miss sleep during the week, you can catch up on the weekend

Fact: You may be able to make up for lost sleep in the short term (for example, if you slept poorly last night, going to bed early tonight may help), but you can’t make up for sleep over a long period of time. Short-term sleep loss can lead to a foggy brain, impaired vision and trouble remembering. The effects of long-term sleep loss include obesity, insulin resistance and heart disease.