In summer, everything grows and everywhere is a picture of prosperity. This is the easiest time for the yang qi of the human body to release outwards. The science of TCM health preservation holds that people should sleep late and rise early and should not be averse to the long daytime and high temperature in summer. They should have the physical training outdoors facing the rising sun in the early morning every day. This can promote the timely excretion of waste inside the body, inspiration of fresh air and metabolism. People had best go to the high mountains, forestry and seashore for convalescence. They may take sunbath and receive a proper amount of fresh air so as to conform to the principle of growing in summer. Bathing with warm water once a day is a keepfit measure which is worth advocating under the intense heat in midsummer. Taking a bath can not only wash away the sweat and dirt to make the skin cooling and refreshing and prevent sunstroke and diseases, but also exercise the body. Because the pressure of the warm water during the bathing as well as the mechanical massage can lower the excitability of the sympathetic nerve, dilate the superficial blood vessels, accelerate blood circulation, improve the nutrition of the skin and tissues, reduce muscular tension, eliminate fatigue, improve sleeping and enbance body resistance.
Daytime is longer than nighttime in summer, and the sleeping time is shorter at night. Besides, the scorching weather affects the sleeping quality. Accordingly, people should take a nap after lunch appropriately to get rid of fatigue and maintain vigorous energy.
In terms of clothing, people should select light, soft, light-colored, well-ventilated and hygroscopic material. The wide and loose clothes should be tailored to meet the requirement of the scorching weather and profuse sweat in summer. The ideal material for summer clothing includes silk and linen fabrics which are light, thin and well-ventilated and also are suitable for tailoring underwear. Pure cotton cloth absorbs water well, but it is poor in heat dissipation. In addition, it easily sticks to the skin after perspiration. Thus, it is not suitable for tailoring summer clothes and underwears.