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. As you get stronger, ...

Progressive overload training involves gradually increasing the intensity or difficulty of workouts over time. It can promote the development of muscle mass and strength. Training using the ...

Strategic progression in your workouts is the missing link between training hard and achieving real, long-term muscle growth.