办公室的职员,经常久坐工作,头处于前屈位,颈部血管轻度屈曲或受压,以致流向脑部的血流受到限制,造成大脑缺氧和营养供应不足,易引起头昏、乏力、失眠、记忆力减退等症状。伏案久坐,胸部得不到充分扩展,心肺的正常功能得不到很好的发挥,使患心脏病和肺部疾病的机会增多,动脉粥样硬化、高血压、冠心病更易光顾。久坐不利于下肢静脉血的回流,直肠附近的静脉丛经常瘀血,是痔疮形成的 Office staff, often sedentary work, the head in the flexion position, mild neck flexion or compression of the blood flow to the brain caused by blood flow restrictions, resulting in cerebral hypoxia and lack of nutrition, can easily lead to dizziness, fatigue , Insomnia, memory loss and other symptoms. Sitting on the desk for a long time can not fully expand the chest, and the normal functions of the heart and lung can not be well played. As a result, the chance of suffering from heart diseases and lung diseases is increased. Atherosclerosis, hypertension and coronary heart disease are more easily patronized. Sedentary is not conducive to the reflux of venous blood in the lower extremities, venous plexus often rectal bleeding, hemorrhoids formation