Testosterone Levels are Collapsing
Among Adolescent and Young Adult Men in the USA
The study authors used data from the National Health and Nutrition Examination Surveys, to investigate total levels of testosterone (TT) for 4045 men from 1999 to 2016.
Across the period studied, the male subjects became fatter. Their BMI increased by over 2 points, which is statistically significant. Over the same period, TT plummeted from 600 ng/dl to …
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