When did the initial stay start?
The first appearance, according to China's calendar, is the beginning of a real summer. The initial lodging is fixed at 10 day, and the initial lodging starts from summer to the third Geng day in the future (called lodging). The first autumn is the beginning of real summer.
People often say: heat is at three volts, and cold is at three or nine. Dog days are the season with the highest temperature and humidity in a year, which can be divided into three days: the first, middle and last days, in which the first and last days are fixed as 10 days, some years are 10 days, and some years are 20 days.
Primary care: Sweat a lot when it's hot. At this time, we should supplement potassium and eat more bananas. It is also necessary to replenish water in time and correctly. It is best to prepare a bottle of water at hand at ordinary times, replenish it at any time, and follow the principle of slow drinking for a few times; For patients with cardiovascular and cerebrovascular diseases, it is particularly easy to get angry in hot summer. Emotional instability is dangerous and may lead to sudden illness. Therefore, you should be less angry in summer.