Training

WORKOUT ROUTINES

Exhaust your muscles and force them to grow.
Don't worry. You'll still build tons of muscle.

BUILD MUSCLE

Eight proven tricks to lifting weights.
Article criticizes trainer certifications.

ENDURANCE

The Mets might be on to something.
Ultramarathons you'd be crazy to run.
Improve endurance without losing muscle.

CARDIO

Train for a race without sacrificing muscle mass.
This type of cardio adds three years, says study.
Conquer your first marathon with our 12-week

PRO TIPS

See real results with these three tips.
Bring guilty pleasures to the gym.
Why does my knee crack and pop during workouts?