SO, YOU WANT to get strong and build muscle, but you don’t have a ton of time to dedicate to the gym. You can try the 5/3/1 training split, a workout plan that helps to streamline your lift without ...

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. Competitive sports ...