Another say about sleep in Chinese medicine

Traditional health studies believe that in the nature, there are some characteristics of four seasons which is warm spring, hot summer, cool autumn and cold winter. So the earth shows that plant in spring, long in summer, harvest in autumn and sleep in winter. So human should like plant comply with the laws of nature, and it is conducive to keep in good health and healthcare.

It is in order to conform to characteristics of the natural world of live spring and the long summer that go to bed early and get up late. It is conducive to the growth of the body yang gas (Chinese Medicine say); and get up or go to bed early in autumn, conform to the characteristics of the autumn harvest, bed early to facilitate the sex fluid collection, get up early in order to conform to yang of relaxation. Bed early winter nights, it is conformed to the characteristics of sleeping in winter, and is conducive to spirit of nourish and storage.

It is very cold in winter, dying vegetation, animals and plants are hibernating, in order to conserves strength and store up energy for the coming next year.

The human body should also conform to the characteristics of the natural world and appropriate to reduce their activities in order to avoid disturbance yang gas, loss of sex fluid. Therefore, the traditional health science proposes that go to bed early and get up late. It is benefit for health.

Modern medical research has also confirmed that goes to bed early and get up late in winter which can avoid hypothermia and invasion of cold air to the human body caused respiratory disease, but also avoided cardiovascular and cerebrovascular diseases caused by cold air. Adequate sleep could be also beneficial to the body's physical recovery and enhanced immune function, and to disease prevention.