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. Sprint interval ...

Building strength and muscle comes with huge payoffs for health and longevity, but most Americans still don't lift weights or regularly practice any muscle-strengthening activity. Why? People often ...

Sprint training focuses on running at maximum velocity in short bursts, with long recovery periods. Specificity is a key training principle – training in a way that is relevant and appropriate for ...

I started strength training about nine years ago for admittedly vain reasons. Fresh off a breakup at the time, weight training offered a welcome distraction and the prospect of a revenge body. I ...

I'm a Fitness & Nutrition writer for CNET who enjoys reviewing the latest fitness gadgets, testing out activewear and sneakers, as well as debunking wellness/fitness myths. In my free time I enjoy ...

Julia Ries Wexler is a writer focusing on all things health and wellness. She has over 10 years of experience in health journalism, and though she has written about pretty much every health topic ...

Functional strength training involves exercises that mimic everyday activities, such as climbing stairs. It aims to improve people’s movement in their daily lives or their performance in certain ...