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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.

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Sarah Klein's Articles (22)

A man taking a rest day from exercise and doing some gentle stretches at home on a workout mat.

Health

Quick Question: Are You Taking Enough Workout Rest Days Each Week?

Man running in the rain through a city in an orange rain jacket

Health

15 Expert-Backed Tips for Running In the Rain

Group of marathon runners

Marathon + Racing

Running a Marathon? Here’s Everything You Need to Know About Recovery

An athlete with his head down, resting his hands on his knees. He is experiencing signs of overtraining like fatigue.

Health

6 Signs of Overtraining to Watch Out For—and How to Tell When It’s Time to Scale Back

A man lifting dumbbells in a modern gym to build muscle.

Health

This Is How Long It Takes to Build Muscle, According to 4 Fitness Pros

A close-up photo of two plates of caprese salad on bread.

Nutrition

21 Foods with Electrolytes to Support Hydration, Muscle Function, and So Much More