Forget the grueling two-hour chest days. Leading exercise scientists reveal that you only need 4 to 8 high-intensity sets per week to unlock significant muscle growth and a broader physique.

Which exercises are most effective for your pecs? What to know.

Chest day workouts generally fall into one of two camps. The first (and most prevalent) is pressing exercises, like the all-important bench press and push-up, since your chest is responsible for ...