Core strength goes deeper than aesthetics — it’s essential for preventing back pain and injury and improving sports performance. This beginner ab workout will get you started. Nearly every movement ...

This article was reviewed by Craig Primack, MD, FACP, FAAP, FOMA. “Right to the core,” “core values,” and “hardcore.” These little idioms highlight just how vital the concept of “core” is in our lives ...

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. While plenty of ...

With rows of machines, piles of of free weights, and plenty of dubious looking cables, it can be hard to know where to start as a beginner in the gym. Even once you’ve got to grips with the various ...