Inaction is the biggest threat to health this century. Scientists have proven that training affects not only the condition of your body, but also memory, brain function and even DNA. Many diseases that we like to attribute to age are actually nothing more than the result of insufficient physical activity. Gretchen Reynolds, a journalist for The New York Times, has compiled cutting-edge research on health and fitness that was previously only available in academic and medical circles. She also debunked popular myths about nutrition, training, necessary clothing for sports and much more. The book contains literally everything you need to know for effective exercise. The publication will be useful to both professional athletes and amateurs who are looking for motivation and inspiration.