In summer, it means "going out of summer", which means leaving in the heat. It is the fourteenth solar term in the twenty-four solar terms of the lunar calendar. "Chu" means to hide and die, and "early summer" means that the hot summer has passed. "Twenty-four solar terms" said: "Go, go, the heat is over."

Summer solar terms are alternating periods of hot and cool. In nature, yin strengthens yang and weakens, and the yang of the human body is also adduced, and "autumn deficiency" also appears. Sleep can not only eliminate fatigue, but also give the brain and body a full rest. It is one of the important methods of health care and beauty, and it is necessary to make full use of sleep to recuperate the body.

Protect navel and prevent diseases. After the summer solar term, the weather is getting colder, and the epidermis at the navel is the thinnest, which is particularly sensitive to external stimuli. If the navel is not properly protected, the cold can easily invade the human body through the navel, causing physical discomfort. If the cold accumulates too much in the lower abdomen, it will also lead to various diseases of the digestive system and genitourinary system.