> Although it is clear that the health risks from asbestos exposure increase with heavier exposure and longer exposure time, investigators have found asbestos-related diseases in individuals with only brief exposures. Generally, those who develop asbestos-related diseases show no signs of illness for a long time after exposure. It can take from 10 to 40 years or more for symptoms of an asbestos-related condition to appear. [1]
[1] https://www.cancer.gov/about-cancer/causes-prevention/risk/s...
Moon dust is still problematic since although smaller it also can't be digested by macrophages and it's believed it would accumulate in the lungs, building up on repeated exposure.
No, they're not Olympic athletes but they're considerably more fit than the average American.
It's the same with F1. "We have the best drivers in the world!" You have the best drivers from the self-selection mechanism you impose on the sport. There are zero reasons to think these categories have good overlap.