Many people are in a "sub-health" state even if they are not sick; Even if it does not belong to "sub-health", the mind is gray, not as beautiful as spring, full of spring and free. Especially children with obesity, hypertension and adult diseases; Young people suffer from arteriosclerosis, thrombosis and senile diseases. Early illness and early aging, "sub-health" has become a common phenomenon and epidemic. The ancients said "longevity of the fittest". "Fitness" means moderation, appropriateness and adaptation. The doctrine of the mean means that everything is not excessive, not excessive and not extreme; Appropriateness refers to grasping the all-round, multi-angle and multi-level relationship between things and the environment; Adaptation means that as the external environment changes, we should also make corresponding changes, that is, keep pace with the times. For example, the key to a reasonable diet is rationality; Proper exercise is the key. Diet and exercise are both necessary for health, but they are both "double-edged swords". The key to psychological balance is balance. This kind of balance is not like a dead well, much less insensitive, but a rational balance and a wise balance. Emotions and sorrows are human nature, but don't be overjoyed and terrified. Otherwise, sesame seeds will fly into a rage, causing myocardial infarction and cerebral hemorrhage, and will resent it for life.
The word "fitness" is not only useful for personal health, but also useful for managing the family and the country. There is a saying in Laozi's Tao Te Ching: "If you manage a big country, if you cook a little fresh food", although it is only seven words, it contains profound philosophical truth, that is, everything in the world, from governing the country to cooking fish, is the same truth, that is, mastering the "temperature" and grasping the "degree" will lead to physical and mental health, peace and tranquility. On the other hand, it is wrong to combine leniency with severity, and it is under siege. The essence of the word "suitable" is dialectics. A wise man once said: Learning philosophy well will benefit you all your life. Philosophy is the first magic weapon to be a man, do things, cultivate one's morality, keep one's family in order, be healthy, be happy and live a long life.