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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 (81)

A close-up photo of a woman practicing proper gym etiquette by wiping down a cardio machine she just used.

Health

14 Gym Etiquette Rules Every Exerciser Should Remember

Woman doing a strength workout using dumbbells and a Peloton Cross Training Series treadmill wondering when she will see results from working out.

Beginners

How Long Does It Take to See Results from Working Out?

A woman lying down on a blue track and doing a figure 4 stretch.

Health

Is Lactic Acid Really Behind Your Post-Workout Muscle Soreness?

A woman smiling while performing a behind-the-neck press on a workout bench. She feels good after lifting weights.

Mental Health

Why You Feel So Good After Lifting Weights, According to Science

A woman exercising to ease seasonal affective disorder symptoms. She's going for a run in the early morning on a snowy day.

Mental Health

Seasonal Depression Kicking In? Here’s How Exercise Can Help

Woman does a deadlift exercise at home

Strength Train

Should You Do an RDL or Deadlift? Experts Explain the Differences and Benefits