
Sarah Klein
Sarah Klein is a Boston-based health journalist with over 15 years of experience in lifestyle media. She has held positions at LIVESTRONG.com, Health.com, Prevention, and The Huffington Post. She is a graduate of the Arthur L. Carter Journalism Institute at New York University, and a National Academy of Sports Medicine certified personal trainer.
Sarah Klein's Articles (63)

Health
6 Possible Reasons Why Your Muscles Are Twitching After a Workout

Health
When to Use Heat vs. Ice to Soothe Sore, Achy Muscles

Mindset
How to Break a Habit, for Real (and How Long It May Take)

Health
How to Chase a ‘Muscle Pump’ (Plus, How Long It’ll Last)

Run
Can You Build Muscle with Running Alone? Experts Explain—Including How to Maximize Your Gains

Health
How Often Should You Change Your Workout Routine (and Why)?