Mark Harrast, MD, Sports Medicine Physician

A group of women running through the forest
Body Exercise
The Female Athlete Triad: A Syndrome Affecting Women Runners

How calorie intake, menstrual abnormalities and bone degradation affect some female runners.

A photo of two people stretching before a run in Seattle
Body Exercise
6 Common Running Injuries (and What to Do About Them)
Woman drinking out of a water bottle
Body Exercise
All Your Questions Answered About Hydrating on Race Day
Bowl of oatmeal
Body Exercise
Demystifying the Pre-Race Meal: 4 Tips for Fueling
Body Exercise
3 Simple Ways to Help Runner’s Knee
Body Exercise
4 Ways to Stop Muscle Cramps From Interrupting Your Run
Body Exercise
What Runners Need to Know About the Immune System
Body Exercise
Runners, Here’s How to Manage a Pesky Hamstring Injury