He studied 118 men with above-average sperm DNA damage and found the quality of their sperm increased significantly after they were told to ejaculate daily for seven days.

　
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  • 格里寧對118位男性進(jìn)行了研究，這些男性的精子DNA受損程度高于平均水平。研究結果發(fā)現，在要求被調查者連續七天射精之后，他們的精子質(zhì)量顯著(zhù)改善。
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