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Many people will have heard of the Alexander technique but have only a vague idea what it is about. Until earlier this year, I didn't have the faintest idea about it - and saw no reason to think I should. But, hunched over a computer screen one day, I noticed that the neck and backache I regularly suffered were more…

• What does the writer suggest in the first paragraph?
• What does the writer say about bad posture in the second paragraph?