There are a few outliers when it comes to sleeping. Some people get by with less, some people need more, but for most people seven to seven and a half hours of sleep ideal each night. Donna Ruko is talking with professor of psychiatry at Mayo Clinic, Dr. Lois Krahn, to get more eye-opening facts about sleep habits.

1.  Know Your Body

2.  Help You Look Younger

3.  ABC's of Getting Z's

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