Where Has All the Testosterone Gone? - The Atlantic
theatlantic.com
Testosterone levels in men are falling, and a University of Michigan professor points to the environment — but is modern life quietly reshaping male biology?
Endocrine Disruption HypothesisGene-Environment InteractionEpidemiological TransitionEvolutionary Mismatch Theory
Theory Briefing
- University of Michigan environmental-health professor John Meeker points to environmental factors as a possible driver of declining male testosterone.
- The question is whether chemical or lifestyle exposures are quietly altering hormone biology across generations of men.
- Competing explanations exist — from diet and obesity to chemical pollutants — making a single cause hard to pin down.
- The trend, if real, carries broad implications for male health, fertility, and development beyond just hormone numbers.