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春风轻拂,气温回升,到处欣欣向荣,呈现出一派勃勃生机。但是,这时人们都会感到困乏没劲,提不起精神。这叫作“春困”。“春困”不是病,它是人体生理机能随着气候变化而发生的一种生理现象。冬天,皮肤血管受到寒冷剌激,血流量减少,大脑和内脏的血流量增加;进入春天,随着温度的升高,皮肤毛孔舒展,血液供应增多,血供应大脑的
Spring breeze, the temperature rise, thriving everywhere, showing a booming vitality. However, when people feel tired and boring, can not lift the spirit. This is called “spring sleepy.” “Spring Sleepy” is not a disease, it is a physiological phenomenon of human physiological function as climate change occurs. Winter, the skin and blood vessels by the cold stimulation, blood flow decreased brain and visceral blood flow increased; into the spring, with the temperature, the skin pores stretch, increased blood supply, blood supply to the brain