Journalist and author A. J. Jacobs road tested hundreds of health apps to separate the solutions from the snake oil. Get his recommendations for the best apps to help you destress, stick to your diet and finally start exercising.

View Part 2 of Health Apps That Work.

Learn more about these health apps.

Whether it's falling or flying, Dr. Oz has the answers to why you have the dreams that you do and what they might mean.