The 54% figure likely overshoots — a direct study saw declining testosterone, but not that steep. Real downward trend, but magnitude uncertain. https://s.fitbodyscience.com/NRqHcV
Strong evidence
Randomized or controlled trials support these claims.
Testosterone levels are declining, but the exact 54% figure might be inflated.
Other research does back up a downward trend in testosterone over the past half-century. One study found levels have been steadily dropping, which aligns with the idea of a big decline. But another study cautions that while levels are indeed falling, it doesn't directly measure a 54% drop, so that specific number might be an overstatement. The supporting evidence suggests a real decline, but the magnitude is uncertain.
So yes, testosterone seems to be going down, but the 54% drop might not be exactly right.
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Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.