John J. Ratey

John J. Ratey

John J. Ratey, MD, is an associate clinical professor of psychiatry at Harvard Medical School and a practicing psychiatrist. He has published more than 60 peer-reviewed articles and eight books, which have been translated into 14 languages.

With the publication of Spark: The Revolutionary New Science of Exercise and The Brain, John Ratey established himself as a leading expert in the brain-fitness connection. He seeks to re-engineer schools, corporations, and individual lifestyle practices by incorporating exercise to achieve peak performance and optimum mental health. Consistently named one of the Best Doctors in America by his peers, Ratey and his work are frequently profiled in the media.

What People are Saying about John Ratey

"Having experienced symptoms of both ADHD and mild depression, I have personally witnessed the powerful effects of exercise, and I've suspected that the health benefits go way beyond just fitness. Exercise is not simply necessary, as Dr. Ratey clearly shows, it's medicine."
—Greg LeMond, three-time winner of the Tour de France

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