The way a person sits in a chair is important. This is especially true for people like students and office workers who sit for long hours. Harvard University and other institutes have carried out research on the effects of poor posture. These effects are not just limited to back and neck pain. Poor posture puts extra stress on muscles and joints. This leads to fatigue, chronic pain, and even damage to small muscles in the arms, hands, and legs. This can result in injuries or medical disorders.
一個人如何坐在椅子上很重要。對於長時間坐著的學生和上班族等人來說尤其重要。哈佛大學和其他機構對不良姿勢的影響進行了研究。這些影響不僅限於背部和頸部疼痛。不良姿勢會對肌肉和關節造成額外的壓力。這會導致疲勞、慢性疼痛，甚至手臂、手和腿的小肌肉受損。這可能會導致受傷或疾病。
生活必備字詞：
muscle n. 肌肉
damage n. 傷害
injury n. 受傷，損傷
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本文節錄自《常春藤生活英語》雜誌，完整內容請見五月號。
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