Circadian rhythm is like our body's internal clock. When this clock is working well, we feel motivated, attentive, and healthy. But any traveler knows the effects of jet lag that disorients our bodies from our daily routines. It’s the Monday morning lull after a full-throttle weekend that leaves us out of sync. Or its modern technology fueling long hours and blue screen viewing at night that disrupts healthy sleep. Studies show we are in a “rhythmic epidemic”, which explains why most people are ...