Originally Posted by chrisx

What about physical health, anatomy. What I had in mind was a question about our tired old bodies.

I quick search finds this example,
Review TheVicious Cycling: Bicycling Related Urogenital Disorders Ilan Leibovitcha, *, Yoram Morb a Department of Urology, Meir Medical Center, Affiliated to Sackler School of Medicine, Tel Aviv University, 59 Tchernichovski st., Kfar Saba, Israel b Department of Urology, Chaim Sheba Medical Center, Affiliated to Sackler School of Medicine, Tel Aviv University, Tel Hashomer, Israel Accepted 26 October 2004 Available online 16 November 2004 Abstract Purpose: Bicycle riding is one of the most popular means of transportation, recreation, fitness and sports among millions of people of all ages who ride on road and off road, using a variety of bicycle types. It is also a readily available form of aerobic non-impact exercise with established cardiovascular beneficial effects. Bicycles are also a common source of significant injuries. This review focuses upon the specific bicycling related overuse injuries affecting the genitourinary tract.
https://ismseat.com/wp-content/uploa...ouscycling.pdf

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