Physically Demanding Work Tied to Male Fertility: Study suggests occupational factors associated with higher sperm concentrations and serum testosterone levels. hms.harvard.edu Submitted by filosoful t3_11dhcoe on February 27, 2023 at 5:25 PM in Futurology 80 comments 297
valkyria1111 t1_jaasfy0 wrote on February 28, 2023 at 2:13 AM Well of course. The active sperm has an evolutionary advantage- it will make a hardier and more resilient offspring. Permalink 1
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