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Old 05-11-2011, 04:38 AM   #1
ixrb89133
 
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Default 久坐和吸烟一样可怕 运动2小时也不行

一个忙碌的上班族一天通常是这样度过的:8-10个小时坐在电脑旁;坐在沙发上看电视用两个小时;坐在各种场合进行交际的时间至少3小时……这样算下来 ,一天中15个小时都是在椅子上度过的。一项来自美国密苏里大学的研究表明,久坐给人们带来的伤害不仅仅是 腰酸背痛这么简单,而是像吸烟一样可怕!
“每天连续坐数个小时,回家后又继续坐在电视机前面,除了腰椎疾病,水宜生水杯,这些人患上心脏病、Ⅱ型糖尿病的几率也会大大增加。”美国密苏里大学的马克·汉密尔顿教授说,这与吸烟给 健康带来的危害很像,多项研究表明,吸烟是许多心、脑血管疾病的主要危险因素,冠心病和高血压病患者中75 %的人有吸烟史。冠心病发病率吸烟者比不吸烟者高出3.5倍,心肌梗塞发病率则高达6倍。
另一项针对900人的研究还表明,吸烟者的腰背疼痛发病率远远高于非吸烟者,这是因为香烟中的一氧化碳等有 害物质会降低椎间盘组织的血液供应量,造成局部组织由于缺血缺氧而导致疼痛。
另外,研究对比还发现,经常久坐在电脑前的人,皮肤容易缺水,干燥会加速肤质老化,从而形成皱纹。吸烟也会 加重眼部皱纹的形成,吸烟的人常会不自觉地眯眼睛,久而久之就会形成习惯,引起皱纹。香烟的挥发物对眼睛的 刺激也很大,使眼睛时张时闭,导致眼皮张弛疲劳,失去弹性,并使之变黄变皱。
澳大利亚墨尔本的国际糖尿病学会的研究则显示,即使每天运动两小时,也不能弥补十几个小时坐着不动所带来的 巨大危害。因此建议,每工作或学习40分钟就起来活动5—10分钟,简单地扩扩胸、摇摇头、伸伸懒腰就能起 到作用。
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