4 ms·
So how do you integrate into your theory the additional fact mentioned in that article that sperm count and male health were associated? > “One can view the de
by nosianu 4y ago
So how do you integrate into your theory the additional fact mentioned in that article that sperm count and male health were associated?
> “One can view the decline in sperm counts as a biomarker for male health in general,” says Kristensen.
> In fact, a study in a 2018 issue of the journal Andrology found a higher risk of hospitalization among men who had lower sperm concentrations. Those with sperm concentrations below 15 million/mL—considered low—had a 53 percent greater risk of being hospitalized for any reason over the course of 36 years than those with more robust sperm concentrations between 51 and 100 million/mL. This effect persisted even after the researchers controlled for body weight, smoking, and other factors.
Sounds to me like that supports the chemicals theory.
- biomcgary 4y agoPossibly chemicals, but, alternatively, natural selection has been relaxed across the board in the modern societies since agriculture and even more after industrialization. How often do you see males literally fighting over sexual access to a female, which would select for physically healthy males? Selection pressure for intelligence may have increased, but education level is negatively correlated with reproduction, so maybe not. Multiple generations of relaxed selection would have a cumulative effect on health AND sperm production.
- nosianu 4y ago> natural selection has been relaxed across the board in the modern societies since agriculture and even more after industrialization Citation very much needed. Women nowadays accept males indiscriminately? Reproduction success is the same for everybody across the board? That's news to me and I very much doubt the veracity of such a bold claim. Natural selection is very much alive.