Gretchen Reynolds

Gretchen Reynolds is the “Phys Ed” columnist for The New York Times and author of the New York Times bestseller The First 20 Minutes: Surprising Science Reveals How We Can Exercise Better, Train Smarter, Live Longer. Ms. Reynolds writes for a variety of other publications, including The New York Times Magazine, O: The Oprah Magazine, Men’s Journal, Outside, Parade, Popular Science and others.