Totally get the lifting focus. One nuance: in overweight men, more aerobic activity like walking raised testosterone while cutting calories didn't, and HIIT raised it in older sedentary men. So other movement may matter in some groups. Full details: https://s.fitbodyscience.com/nc2aCH
Contradicted by evidence
Strong evidence contradicts these claims.
Walking and HIIT can raise testosterone, contradicting the idea that only weight lifting works.
Other research not linked in the post directly challenges this. One study found that in overweight men, more aerobic activity like walking raised testosterone levels, while cutting calories did not. Another found that HIIT, a non-weightlifting exercise, increased testosterone in older sedentary men. Both point in the opposite direction of the claim. That said, these were specific groups — overweight men and older sedentary men — so the findings may not apply to everyone.
So while the post assumed only weight lifting matters for testosterone, walking and HIIT have both shown increases in certain groups, making that assumption look shaky.
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Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.