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 ...

Add Yahoo as a preferred source to see more of our stories on Google. For many lifters, chest day is a Monday ritual. For others, creating the perfect upper-body blend of strength, hypertrophy, ...

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 ...