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Stop for a second and notice the way you are sitting. Back curved, shoulders slumped, maybe legs crossed? For people who spend the day staring at a computer screen, this position is fairly typical. But what is it doing to your spine, if anything? Do we need to sit up straight to focus, like that mean math teacher once insisted? Here's some straight talk from one expert, Mladen Golubic, medical director for the Center for Lifestyle Medicine at Cleveland Clinic's Wellness Institute. 停下手里的事情，注意一下你的坐姿吧！驼背、缩肩，说不定还翘着二郎腿？对于整天盯着电脑屏幕的人来说，这个姿势相当典型。然而，如果这种坐姿会伤害你的脊柱呢？另外，我们真的必须坐直了才能集中精力吗，就像小时候严厉的数学老师要求的那样？克里夫兰诊所健康协会(Cleveland Clinic's Wellness Institute)生活方式医疗中心(Center for Lifestyle Medicine)的医学主任穆雷登•戈卢比奇(Mladen Golubic)就坐姿问题畅谈了自己的看法。 Degrees of Comfort 舒适的坐姿角度 Little research has been done on the best way to sit upright. One American meta study in 1999 concluded that sitting at an angle of 110 to 130 degrees was optimal for spine comfort. A Scottish study published in 2007 found that leaning back at 135 degrees is ideal to prevent back strain. While interesting, this sort of precision may be impractical for most people, Dr. Golubic says. | 
