The secret of health preservation is actually hidden in Huangdi Neijing. The first article of Huangdi Neijing says that "the law should be based on Yin and Yang, and several tricks should be reconciled, and the diet should be appropriate, and the daily life should be regular, so as to get something for nothing." First of all, you should cultivate your mind, be calm in mind, be indifferent to fame and fortune, be pure in heart and lust, not be brave and heartless, not greedy and jealous, not compare with others, be kind-hearted, open-minded, and not obsess. We must also have healthy and upward goals and ideals, and we must not be depressed and decadent.

Health care should also live according to the laws of nature. Generally speaking, you should sleep when you should, eat when you should, and develop good habits of work and rest. Don't stay up late, don't sleep late, don't overeat, don't diet to lose weight. Don't overwork and overdraw your body energy, exercise moderately, don't always look down at your mobile phone all day, and live a moderate and regular life, so that you can be healthy and energetic.

Health care should change according to the changes of the four seasons. In nature, it is spring, long summer, autumn harvest and winter storage. Go out for an outing more in spring, blow less air conditioning in summer, be suitable for eating sour in autumn, and keep warm in winter to avoid catching a cold. Eat more local ingredients in season, and eat less vegetables and fruits out of season. If you don't live according to the laws of nature, don't stay up late, don't drink, don't indulge yourself, don't indulge yourself, and don't pay attention, your vitality will soon be consumed, you will get old, and diseases will come early.

Health care is not a whim, but a lifelong constant concern, which is a bit by bit accumulation. The building was not built in a day, nor was health raised in a day. It needs all the physical and mental input, and it should be adjusted from all aspects to develop good eating and rest habits. Adapt to the laws of nature and adjust your body to the changes of nature.