Study: laid-back posture avoids back pain - Xinhua
 Earthtimes.org | Study: laid-back posture avoids back pain Xinhua - BEIJING Nov. 28 (Xinhuanet) -- Contrary to our mothers' sage advice that sitting up straight is good for our bones a new study has concluded that the best way to avoid back pain is not to sit bolt upright ... Was Mom wrong? Study says you shouldn't sit up straight Workers flat out? Study finds 135 degrees is best |
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