INFRARED increase androsterone?

There is an old study from 1939 which shows that shining a lamp with the UV and infrared light spectrum on the chest massively increases androsterone, and shining it around the testicles increases it even more (I wouldn’t do it to avoid heating the testicles).

Do you think that just shining an infrared heating lamp on the cage will give any similar results?

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I’ve used red light therapy on the testicles for years now, I believe it does give a slight boost in libido and maybe erection quality. Although I wouldn’t say it is the most noticeable effect. Would need blood test result to confirm tbh

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awesome answer ! Thanks ! ; )