Do the mood-changing effects of the TRT medication have any resemblance to the mood-changing effects of exercise?

I often notice that in the days during/following good exercise, I not only feel happier, but also more "virile" for lack of a better word, and also more aggressive. I partially attribute this to testosterone increasing.

Do you have any particular opinions on global trends in sperm count reduction? https://www.scientificamerican.com/article/sperm-count-dropp...