Simple, effective, and backed by science, push-ups remain one of the smartest ways to build upper-body strength without stepping into a gym.

This classic bodyweight exercise remains one of the most effective ways to build muscle, protect your shoulders, and improve daily performance—without stepping foot in a gym.

Weight training is essential to good physical health and is especially important for aging well. A study by Harvard researchers found that middle-aged men who could do 20 push-ups had better heart ...