I'm deeply confused by the worldwide drop in testosterone levels & sperm counts. It's a *huge* effect, too big to be explained by obesity. The most common explanation I see proposed is environmental contaminants. But I don't know if that's true, or which contaminants matter most.
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Replying to @s_r_constantin
BPA, Fluoride, Boron Deficiency, Mercury, Cadmium, Chromium; Zinc Deficiency. Aluminum. Xeno-estrogens. etc. also plasticizers. Women affected too. Poly cystic ovarian rates in some countries are already 30% but its under reported.
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Replying to @NotSkycoinCEO
links to studies & metastudies extremely welcome -- I'll compile them eventually but it's a big literature and it's nice when people help with search costs.
11:19 AM - 21 Mar 2019
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