You, indeed, have hit upon a strategy that can make a difference for people in your circumstance. There is a trigger in the human physiology that prolonged cold exposure will give rise to increased testosterone production. This is part of the overlay of physiologic regulation to help humans cope with their physical environment. So it is not intended to be a route to greater sexual pleasure per se, but this can be capitalized on to help restore normal sex function. So if you work out a regimen that is helpful, this can bring meaningful relief without resorting to exogenous administration of the hormone. While that works, it also suppresses production and keeps people on a treadmill for them to have ongoing sexual function in their lives.
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