Keeping healthy doesn't mean eating nutrients, health care drugs, etc. There are many ways to maintain health, such as drinking tea, dieting, taking medicine, beautifying, meditation, fitness, avoiding the valley and closing your eyes. In ancient times, Buddhists, Taoists, immortals and saints all paid great attention to health preservation, because they had such leisure and financial conditions, and it was impossible for working people to do this, because food and clothing came first. Things are different now. The country is stronger and the people are richer. Old people have leisure time and can enjoy life. Some people regard medical treatment as medical treatment, which is wrong. Health preservation depends entirely on reasonable and scientific methods to assist fitness, which is called health preservation.
How to taste tea, how to eat correctly, how to exercise, how to keep food, how to sleep correctly, how to work, how to nourish eyes and heart, how to nourish qi and blood. How to wash your face and soak your feet, how to scratch your head and comb your hair, how to calm your mood, is conducive to mental troubles, and how to relax your stomach without resentment. These are all part of keeping in good health. As for why it is healthy. In short, it is to live a few more years, not to abandon your children and grandchildren, but to see a more colorful world. Capable old people can contribute to the country and create more happiness for future generations. In short, they want to see more future worlds. Unfortunately, there is no elixir on earth or on earth. Health is a good hope, and letting nature take its course is the basis of longevity.