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Now here's some research I'm not sure I agree with. The latest studies suggest good posture won't actually protect against aches and pains. 最新的研究表明：良好的姿势实际上无助于预防疼痛。我并不确定这一研究结果是否正确。 What I've learned is that if I switch on my core muscles (pull your belly button in), my neck, back and head all fall comfortably into line and my spine feels comfortable and relaxed. My shoulders drop, my chin tucks in. 就我所知，如果我舒张核心肌肉（收腹）、抬头挺胸，坐得笔直，那我的脊椎就会非常舒适、放松。如果肩部下垂，我的下巴就会往后缩。 What seems to matter more, say the experts, is how long you stay in a single position. That's what will give you aches and pains - spending too long in the same position. In other words, to prevent back pain, keep moving. We're designed to keep moving. 专家表示，最为重要的是你能保持同一个姿势多长时间。这才是疼痛的原因所在--长时间保持同一个姿势。换言之，为了预防背痛，你需要不断走动。我们就是要走来走去。 | 
