A new study suggests that timing exercise to align with your body’s unique circadian rhythm could be key for optimal heart ...

Timing exercise to match body clock chronotype-the natural predisposition to morning or evening alertness-may lower ...

Are you an early bird or a night owl? A new study finds that aligning exercise times with natural alertness patterns may help ...

For years, I was an inveterate early morning exerciser — the kind of person you'd spot trudging into the gym just after the doors were unlocked or running through the neighborhood when the coffee ...