Traditional Chinese medicine believes that "the brain is the home of Yuan God" and the brain is the place where spirits meet. People's vision, hearing, smell, feeling, thinking and memory are all due to the role of the brain, which shows that the brain is an extremely important organ of the human body and the key to life. Brain strengthening is the key to fitness. The methods of strengthening the brain generally include the following aspects: various exercises are beneficial to health, but most of them are not direct. And calligraphy, painting, playing Tai Ji Chuan, etc. It has the same characteristics of hand-brain absorption. Hand-brain relationship is the closest. China's fitness ball movement (that is, two balls in his hand revolve around each other) pays attention to the coordination of hand and brain, which has a good brain-strengthening effect.