The First 20 Minutes

Get the most out of your workouts with The First 20 Minutes. In her Phys Ed column for the New York Times, author Gretchen Reynolds debunks exercise myths and answers common questions, such as how often we should exercise, how long workouts should be, and how to avoid injury. With insights from experts in physiology, biology, psychology, neurology, and sports, you'll discover the surprising answers to questions like how much cardio you need and whether stretching before a workout is counterproductive. Get the right workout for your body, age, fitness level, and goals with this must-read book.