有些人出于习惯,午间喜欢坐在椅上或是沙发上打盹,也有人喜欢趴在桌边上睡觉。可醒来后常感头晕耳鸣或腿软、视物模糊以及面色苍白,需过一段时间才能恢复。出现这种情况是由于“脑贫血”所致。因为当人们熟睡时,心率减慢血管扩张,流经各脏器的血液将会减少,且午餐后大部份血液要进入胃肠系统以便消化食物,此时坐姿睡 Some people out of habit, like to sit in the midday lunch or nap on the couch, but also some people like to lie on the edge of the table to sleep. Can often wake up dizziness tinnitus or leg soft, blurred vision and pale, take some time to recover. This occurs because of “cerebral anemia.” Because when people sleep, the heart rate slows the blood vessels to dilate, blood flowing through various organs will be reduced, and after lunch most of the blood will enter the gastrointestinal system in order to digest food, when sitting