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How does your body tell time? By the light coming into your eyes. When it starts to get dark, the pineal gland in your brain makes melatonin getting you ready for sleep. To read more go to www.drdavidheber.com #discovergoodnutrition

A post shared by Dr. David Heber (@drdavidheber) on Feb 3, 2017 at 9:54am PST