Or could it be ..? Parasites causing infertility so hosts continue having new sexual partners on into later life transmitting the parasites.
Sperm counts dropped >50% in Western countries since the 1970s: new meta-analysis of 105 studies. Pollution? http://www.popsci.com/amp/western-men-sperm-decline-environment …
-
-
-
I read about this five to ten years ago.No research on it?
- 7 more replies
New conversation -
-
-
Zinc, and chemicals interfering with it, deserves a closer look I think. Studies on effects of pollutants going on decades, never cinched.
Thanks. Twitter will use this to make your timeline better. UndoUndo
-
-
-
Those are at the very least contributing. No single mechanism explains all? (idk.) btw, just skimmed (2013) slides, https://www.slideshare.net/sandroesteves/obesity-and-male-infertility-oman-esteves …
-
Don't forget outright disparagement of any form of male intrasexual competition in early childhood.
End of conversation
New conversation -
-
-
Maybe sitting a lot does the trick.
Thanks. Twitter will use this to make your timeline better. UndoUndo
-
-
-
Probably a combination- perfect storm: obesity, inactivity,diet and plain old body heat from sitting 24/7.
Thanks. Twitter will use this to make your timeline better. UndoUndo
-
-
-
Could it be a plastic thing? Or a polyester thing? IDK shits weird.
Thanks. Twitter will use this to make your timeline better. UndoUndo
-
-
-
1/2 ...or Chronic-stress disrupting hormonal communication within the body, wherein Men & Women secrete lesser Sex hormones.
Thanks. Twitter will use this to make your timeline better. UndoUndo
-
-
-
deep soy?
Thanks. Twitter will use this to make your timeline better. UndoUndo
-
Loading seems to be taking a while.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.