Book excerpt: When your brain works right, so do you. When it's out of balance, you feel frustrated, or worse. Yet amid all the advice about how to keep the rest of our body strong and healthy, we hear very little about how to keep the most complex and magnificent organ of all - the human brain - in top working order. In MAGNIFICENT MIND AT ANY AGE Daniel Amen demonstrates that the true key to satisfaction and success at any age is a healthy brain. By optimising our brain function we can all develop the qualities of a magnificent mind, such as increased memory and concentration; the ability to maintain warm and satisfying relationships and better impulse control and mastery over potential addictions. Daniel Amen demonstrates how to develop a healthy brain through diet, natural supplements, vitamins, exercise, positive thinking habits, and, if necessary, medication. He also pinpoints specific ways to tailor your behaviour, nutrition and lifestyle to deal with common mental challenges such as memory problems, anxiety and depression, attention deficit disorder, and insomnia.