I’m an exercise scientist. This is the perfect 30-minute arm workout for busy men with no time

Build a serious arm pump with just a half hour of focused reps.

What It Actually Takes to Run a Sub-3 Marathon, According to Coaches and Race Data

The sub-three-hour marathon is one of running’s most coveted milestones. It means averaging 6:52 per mile for 26.2 miles, a ...