The Well

The Achilles Tendon and the Runner

A runner’s guide to the largest, strongest—and most-often-injured—tendon in the human body

The Achilles Tendon: What Goes Wrong for Runners

The Achilles Tendon and Running Shoes

4 Exercises to Injury-Proof Your Achilles

How To Beat An Insertional Achilles Injury

Latest Stories

Best Running Advice Ever

Five top coaches tell the one most important piece of wisdom that informs their training approach—and can improve your running.

Nutrition Strategies to Optimize Performance

A new study presents the best strategies to reduce glycogen depletion, low blood sugar, dehydration, central fatigue, muscle damage, and heat illness in hot weather.

More Latest Stories...

Training

Come here to find everything from strength-training workouts to distance-specific exercises and how to PR on your next race.

Best Running Advice Ever

Five top coaches tell the one most important piece of wisdom that informs their training approach—and can improve your running.

Gear

Find the right running shoes, apparel and more reviewed by our experts.

Nutrition

We cover nutrition tips and advice to help you improve your running performance and keep you on track to meet your wellness goals.

Nutrition Strategies to Optimize Performance

A new study presents the best strategies to reduce glycogen depletion, low blood sugar, dehydration, central fatigue, muscle damage, and heat illness in hot weather.

Become a Better Butter Burner

You can adapt your body to tap your vast energy reserves of fat through diet and training. Here’s how.

Five Questions About Fuel

Experts explain why it is worthwhile for runners to focus on fat-burning metabolism and blood sugar management.

Racing

Ritz on Running: Magic Happens

When training and focus come together with the right conditions, breakthrough races are possible. Dathan Ritzenhein recalls his best race ever.