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英語 和訳をお願いします!

この文章を訳してください! According to Kripke findings, people who sleep between 6.5 and 7.5 hours a night live the longest.And people who sleep eight hours or more, or less than 6.5 hours, don't live quite as long. In other words, both sleeping too long and not sleeping long enough are associated with health risk. The big surprise is that what is defined as a long sleep seems to start at eight hours. Thus, sleeping 8.5 hours every night might actually be a little worse for a person's longevity than sleeping five hours. This suggests that we should reconsider tha idea that the more sleep we get, the more beneficial is the effect on the mind and body. To feel our best, it is important to get a sufficient amount of restful sleep, and, at the same time, to keep in mind that sex or seven hours of sleep a night is plenty.

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クリプケの報告では、一晩6時間半から7時間半の睡眠を取る人が一番長く生きる。8時間以上、あるいは6時間半以下の睡眠を取る人はそれほど長生きしない。言い換えれば、睡眠時間が長過ぎても、短すぎても健康を害する。大きな驚きは、8時間以上が長い睡眠時間と定義されていりことだ。このため毎晩8時間半寝ると、5時間寝る人に比べて少しばかり寿命が短くなる。     ということは、睡眠が長ければ長いほど、精神的にも身体的にもよい、という考えを改めなければならないことを意味する。最高の気分を味わうには充分な休養が必要であると同時に、性行為あるいは一晩7時間の睡眠で十分だということも覚えておく必要がある。

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