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男人天天来“一发”，有助改善精子的品质

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男人天天来“一发”，有助改善精子的品质！澳洲最新研究指出，男性每天射精，连续七天后，精子内去氧核糖核酸（ＤＮＡ）受损指数会大为降低，即品质改善，有助让卵子受孕。

澳洲不孕症治疗中心“雪梨试管婴儿胚胎植入机构”（SydneyIVF）专家葛令宁表示，他邀请一一八位精子品质被列为“受损”的男士参加实验。实验前，受测者精子受损的“ＤＮＡ片段化指数”（DNAfragmentationindex”平均为三四％，意味精子品质“很差”。

葛令宁请受测男士们每天射精，历时七日，期间不必服食任何药物，也不必更改生活方式。七天后再检查受测者精子，发现精子ＤＮＡ片段化指数降到二六％，品质已可列入“还好”等级。

葛令宁表示，五分之四受测男士的精子品质大为改善，有很多人甚至跃升到“良好”之列。精子数量方面，虽然七天内由一亿八千万只降至七千万只，但仍在正常、可令卵子受孕范围，精子也变得较活跃。

葛令宁的理论主张，精子停留在睾丸愈久，ＤＮＡ片断化指数会累积升高，温暖的环境也让精子变得较迟钝。他怀疑精子停留在输精管愈久，接触到诸如自由基这种活性氧分子，让ＤＮＡ遭破坏的现象更严重。精子没毛病的男性如果天天来一发，能不能得到相同好处，犹待进一步实验证实，葛令宁认为，结果很可能也是如此。


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