Diet, is closely linked with health. Diet is the root of health maintenance, and it is more than filling the stomach. Rational diet means the intake of different nutrients according to the unique features of different bodies to maintain the balance of the bodys metabolism. Rational diet can strengthen ones physique and improve human immunity and disease resistance, thereby reaching the goal of good health and a long life. Daily life health includes rest and sleep and personal hygiene. Besides extra-nutrition, one need pay attention to reasonable rest and personal hygiene. Many diseases are caused by lack of sleep and bad personal hygiene. As a result, we need care about daily life health in order to have a healthy body. Exercises are the root of life. Only by regular exercises can we have a good body. Chinese people advocate health maintenance by exercises since ancient times. In the warring state period, people advocated health maintenance by exercises, because they believed exercises can enhance peoples physique and increase ones life span. Modern people live a much better life than ancient people, but to have a healthy and long life, one still need exercises. Life lies in movement and exercises are the way of health maintenance. - from Amzon