already battled chronic overuse injuries, but I was still young and stupid and pushed through to extend my competitive efforts into my early 30s. I literally spent years in pain as a result. Felt so old.
Now, in my early 50s, the pain has largely subsided and I'm back to living a relatively normal (just extremely cautious) life. I feel better and younger now than I ever did in my 40s.
Be careful, you young CBers. There's a price to pay for recklessness with one's health.