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久蹲后头晕是贫血症吗因为职业的关系,我常常要蹲着工作。但是,我蹲着工作一段时间后站立时,常常会有头晕的现象。这是怎么回事?人在蹲位时,下肢呈屈曲状态。这时下肢的血管受压而使血液不易往下肢流去,下肢就显得缺血了。另一方面,当久蹲的人突然站起时,下肢血管恢复畅通,这时就像猛然打开了闸门,血液就会大量地往下肢涌去,这样一来头部就显得血不够用了。而大脑一时得不到充足的氧气和营养的供应的话,大部分人就会出现头晕、心跳的现象.但是身体适应过来后,这种现象又很快会消
A long time after the dizziness is anemia? Because of the professional relationship, I often squat work. However, when I stood squatting after working for a period of time, I often felt dizzy. This is how the case? People squatting position, the lower limb was flexed state. At this time lower extremity blood vessels pressure so that the blood flow to the lower extremities, the lower limbs seemed to be ischemic. On the other hand, when a squatter suddenly lifts up, the blood vessels in the lower extremities regain its smooth flow. At this moment, it suddenly opens the floodgates and the blood floods to the lower extremities in large quantities. As a result, the blood on the head becomes inadequate. When the brain does not have sufficient supply of oxygen and nutrients for a time, most people experience dizziness and heartbeat, but this phenomenon can quickly disappear after the body has adapted