Training today is no longer defined by intensity alone. Athletes and everyday fitness enthusiasts have learned that long term ...

Welcome to the second season of Training Diaries, a Lifehacker series about my journey to the 2024 Philadelphia Marathon. This series will cover all the ups, downs, and hill repeats leading up to race ...

The fitness world loves to celebrate the hustle. “No days off” hashtags flood social media. Athletes brag about two-a-day training sessions. Motivational memes shame anyone who dares take a break. In ...