An interesting finding about the link between endurance athletes and pregnancy. Which is that we can work out about how good endurance athletes can get by looking at the extreme to which the human body can be subjected and still – long term – survive. The finding being presented as a bit of a surprise, that this is about the limit to which pregnancy subjects the body.
Well, yes, obviously, that’s how evolution works:
The Tour de France is one of the world’s most gruelling events.