In cross-sectional work from Xu et al, higher global CBF was observed in older individuals who frequently participating in RT (Xu et al., 2014)
So this was shown at least in a couple of studies I've seen where people that were exercising, I believe, or may have been men only that were exercising, did some separate training and then did cold water immersion, something like 50 degrees Fahrenheit, 15 minutes
According to the Mayo Clinic, male sexual arousal involves the brain, hormones, emotions, nerves, muscles and blood vessels, and if any of these areas arent fully functional, erectile dysfunction can occur
R., Liang, H., Deng, L
The body essentially uses GHK-Cu as an emergency responder, deploying it wherever tissue regeneration is needed