Chest day is sacred. But if you're just benching and hoping for the best, you're leaving serious gains on the table. Your chest is a complex group that responds differently depending on the angle, ...

Many men over 40 find that building muscle, especially in the chest, feels more challenging than in their younger years. Slower recovery, increased risk of injury, and hormonal shifts can indeed make ...

Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. The major muscle in ...