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词数:628阅读难度:★★★☆☆建议阅读时间:7分钟Sitting is such a paradox(悖论).After a long day,you relish the opportunity to plop down on the couch and settle in for the evening.But cozy up in that same position all day long and you suffer a stiff neck,tight shoulders,and back pain.What gives?“Any position we hold for any length of time will eventually turn to pain because the body is not primed to do that,”said Joan Vernikos,former NASA scientist.
Word Count: 628 Reading Difficulty: ★★★ ☆☆ Suggested Reading Time: 7 minutes Sitting is such a paradox. After a long day, you relish the opportunity to plop down on the couch and settle in for the evening. But cozy up in that same position all day long and you suffer a stiff neck, tight shoulders, and back pain. What gives? “Any position we hold for any length of time will eventually turn to pain because the body is not primed to do that, ”said Joan Vernikos, former NASA scientist.