A new study conducted by UCLA School of Nursing researchers has found that serious leisure male cyclists may experience hormonal imbalances that could affect their reproductive health. The study found heightened levels of estrogen in endurance athletes associated with intense exercise as well as use of chamois creams and recommends further study. (source)
Hmmm… serious leisure cyclists? Seems like those two terms cancel each other out. Maybe they mean moderately serious cyclists. Either way, heightened levels of estrogen don’t sound good to me.
Note the bit about chamois cream – later in the article they say certain types of cream seem to have a cumulative effect (as in, the longer you’ve been using it, the more you’re affected).
Possible conditions associated with elevated estrogen in males include gynecomastia, a condition that may result in the loss of male pubic hair and enlarged breast tissue.
So that’s why road cyclists don’t have any leg hair! And I thought it was because they shaved their legs.