Learn how to improve push-ups with this personal trainer's advice based on common mistakes she sees in the gym.

Trainers say a handful of simple exercises—like presses, curls, and push-up variations—effectively build upper-arm strength. These moves hit major muscle groups to boost power and stability. Adding a ...

What started as a simple challenge quickly became a daily grind. Here’s what 30 days of nonstop push-ups actually did to us.