here is a link to an interesting study on exercise-induced hypogonadism in male runners.
pubmedcentral.nih.gov/articl … id=1305090
also, there are several other links to other similar studies at the bottom of the page. worth reading for sure.
i know all the time i was on finasteride (1 year) i was doing some serious running. a few miles a day. and biking when i wasn’t running. and hiking and backpacking on the weekends. it was all part of my “if i’m losing my hair at least i’ll try and get in great shape” plan.
perhaps all the exercise increased the ill effects of finasteride on the hypothalamic-pituitary-gonadal axis.