When it comes to age and sleeping habits, there are a lot of stereotypes. The elderly show up at the mall the minute it opens, eat dinner at 4:30, and turn in for the night before the sun even sets. Young people are out causing mischief until the wee hours and lazily sleep in 'til noon. Why is there such a sleep mismatch between the old and young? A study suggests that this bedtime quirk may have helped our ancestors survive. It's not a bug; it's a feature.
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Insomnia Like A Fox
How Much Sleep Do You Actually Need?
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Key Facts In This Video
In a lifetime, a person will spend 24 years asleep. 00:13
After a few nights of sleep deprivation, the body can fully recover with a few nights of good sleep. 01:04
The ideal average length of sleep is seven to eight hours, but it may vary from person to person. 02:31
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