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 ...
View post: The Dietary Changes and Training Routine a 45-Year-Old Dad Followed to Lose 50 Pounds in Just 3 Months Building a strong, defined chest doesn’t require a laundry list of exercises. In fact, ...