Declining Testosterone Levels

Discussions center on the observed decline in men's testosterone levels over recent decades, potential causes like plastics, soy, and environmental factors, and related topics such as replacement therapy, health effects, and behavioral implications.

📉 Falling 0.3x Health
3,837
Comments
20
Years Active
5
Top Authors
#758
Topic ID

Activity Over Time

2007
9
2008
17
2009
26
2010
22
2011
34
2012
19
2013
57
2014
38
2015
147
2016
119
2017
192
2018
310
2019
295
2020
269
2021
591
2022
593
2023
464
2024
340
2025
281
2026
14

Keywords

IQ RCT www.gq forbes.com TestoGen TRT HN www.ncbi stackexchange.com reuters.com testosterone men levels effects plastics muscle sperm soy higher risk cutoff

Sample Comments

reportgunner Oct 31, 2019 View on HN

Sorry, what does testosterone have to do with this ?

unmole Jul 26, 2021 View on HN

I thought exogenous testosterone had the opposite effect?

morpheos137 Dec 23, 2020 View on HN

Maybe this has something to do with it?https://uk.reuters.com/article/health-testosterone-levels-dc...

busterarm Nov 23, 2018 View on HN

Probably something to do with testosterone replacement therapy.

shoobiedoo Sep 30, 2025 View on HN

Well that's great for you, but I was making a generalized statement about the role of testosterone, scientific data showing huge decline, and more and more studies linking it to plastics. We can't just alter a key hormone within the span of a few decades and shrug it off. My levels are great for a 40 year oldAnd yes there are certainly other factors, but that's not what the original comment was talking about?

tpoacher Oct 5, 2022 View on HN

Has this been accompanied by a rise in testosterone by any chance?

mberger Aug 22, 2016 View on HN

Maybe it's lowering the testosterone? http://www.ncbi.nlm.nih.gov/pubmed/13129483

byyoung3 Feb 4, 2024 View on HN

testosterone doesn't like to be told what to do

CameronNemo Sep 23, 2021 View on HN

Do you have a source on the testosterone?

kevviiinn Apr 24, 2023 View on HN

Correlating gym-going with testosterone supplementation?