Forget the grueling two-hour chest days. Leading exercise scientists reveal that you only need 4 to 8 high-intensity sets per ...

A legendary bodybuilding coach explains a small chest fly tweak that improves muscle activation and helps you build a bigger, ...

Add Yahoo as a preferred source to see more of our stories on Google. The bench dumbbell fly has never been one of my favorite exercises for my clients, especially for those with balky shoulders. I’ve ...

Beth Skwarecki is Lifehacker’s Senior Health Editor and has been writing about health, fitness, and science here since 2015. Beth was the recipient of the 2017 Carnegie Science Award in science ...

Your pectoralis major is a large and powerful chest muscle that’s shaped like a fan. It starts from two sections: your breastbone (sternum) and your collarbone (clavicle). The two sections come ...