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How to train to run 13.1 miles in just a little over two months.
The key to do both? Timing, a new study says.
Falling into your body's instinctual gait maximizes efficiency, a study says.
Simple carbs and saturated fat can wreak havoc on your joints.
That slow plod could be doing more harm than good.
Everything you need to know to run, swim, and bike to victory.
The best tech from LifeBEAM's A.I. personal trainer.
Battle your worst impulses with exercise.