The internal Rolex, circadian rhythms regulate biological functions like sleeping, eating, and mood patterns. The cycle typically repeats every 24 hours, but disruptions in the rhythm can cause problems from jet lag to mood disorders.
Some Sunday Inspiration
Sam Fox has begun his journey, and it's a long one— covering the distance of 100 marathons at a rate of 43 miles a day. Along the way, he hopes to raise a quarter of a million dollars for Parkinson's disease in the name of his mother Lucy.