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 ...

Here’s how to find the right effort level for a strength workout. By Alyssa Ages You’re sweaty and sore, and just hoisting your gym bag onto your shoulder makes you groan. The workout was exhausting, ...

Strengthmaxxing, like spring, is in the air right now. Everywhere you look, someone’s lifting. Celebrities, influencers, scientists, aging, shirtless rock stars and Cabinet secretaries all seem to be ...

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 ...