About the book: 2011 / Today, few people need to be convinced of the benefits that physical exercise brings. However, according to Ingrid Cummings, it is not only the body that needs to be trained, but also our brain. We all know: an active and active brain is better able to resist mental exhaustion, as well as the development of certain diseases (for example, Alzheimer's disease), than a brain that works according to its usual pattern. We know this, but we do nothing. The author suggests trying “cross-training” the brain, that is, activities that involve different areas of the brain, and not just the small part that we give work to every day, fulfilling our professional duties as a chemist or lawyer or designer. By cross-training our brains, we become generalists—happy owners of a variety of interests, hobbies, and skills. Generalists cope with psychological crises, depression and professional burnout much easier. The result is improved health and a newfound joy in life..