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男子从何时开始性衰老,这也是值得讨论的问题。老年男性阴茎勃起需要较长的时间以及需要增加对生殖器的直接刺激量。60岁以后的男性阴茎勃起强度和
It is also worth discussing when men start sexually aging. Older men have longer penile erections and need more direct stimulation of the genitals. Male penile erectile intensity and after 60 years of age