昼夜的交替和寒暑冷暖的变化,都会影响人的各种生理活动,进而影响人的健康。在一年四季中,春季是气温、气压、气流、气湿等气象要素变化最大的季节。民谚云:“春天孩儿脸,一日变三变。”特别是早春时节,或风和日丽,春光明媚;或阴雨连绵,冷风阵阵,寒气袭人。故民间素有“春寒冷 The alternation of day and night and the change of warmth and coldness in summer and winter will affect people’s various physiological activities and thus affect people’s health. In all seasons, spring is the season with the most changes in meteorological factors such as temperature, pressure, air flow and humidity. Folk proverb goes: “Spring child face, changing day by day.” Especially in early spring, or the sunny, sunny spring; or rainy, cold, bursts of people. It is known as "spring cold