結果 : at what age can a guy produce sperm
0:31

Does a man’s sperm count decrease with age ?

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What happens if we release sperm daily at the age of 14?

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0:31

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13 回視聴 - 2 か月前
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Does sperm analysis result get worse with men’s age?

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14 回視聴 - 2 年前
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Can an 80 year old man produce sperm?

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