当人们熟睡时,大脑皮层处于抑制状态。如果苏醒后立即坐起和下床直立,这是非常危险的,往往就在这一刹那间,发生心、脑血管疾病。因为这时血液粘稠,血流量缓慢,脑部缺血缺氧,特别是高血压和心脏病患者更应注意。所以早晨苏醒之后要先闭目养神,然后在 When people sleep, the cerebral cortex is in a state of depression. If you wake up immediately after getting up and getting out of bed, it is very dangerous, often in this flash, heart, cerebrovascular disease. Because when the blood viscosity, slow blood flow, brain ischemia and hypoxia, especially in patients with hypertension and heart disease should pay more attention. So wake up in the morning after the first recuperate eyes, and then