I think the data presented at ASCO this year showed an increase in adenomas (benign, potential precursors of colon cancer) among marathoners. It’s unknown yet whether the that translates into an increase incidence of colon cancer in this population, though it would be prudent to assume so for now. The study was smallish n=100 IIRC so more research is warranted. Interesting to consider the biological mechanisms if this relationship holds up.

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browningstreet a day ago | parent | next [-]

I think about this TED Talk from 2012 a lot.. and he presents some data. It changed some of my goals, and I’m a bit more multi-sport than I used to be.

Run for your life! At a comfortable pace, and not too far: James O'Keefe at TED×UMKC

https://youtu.be/Y6U728AZnV0?si=EI8ubUwEr4KqR2PC

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amanaplanacanal a day ago | parent | prev | next [-]

I wonder if this has more to do with the diet of marathoners than the running.

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pmdulaney a day ago | parent | prev [-]

Thanks for your very knowledgeable response!