I had part of my colon removed when I was in my late 20s. The resident who helped the surgeon mentioned several times that he had never seen someone “our age” in for this kind of procedure.
Maybe I should have known then that aging might take a different course with me. I had to get custom orthotics in my mid 30s (to prevent a bad foot from affecting my quality of life, as the doctor said it would). That was also around the time my hair started going gray in earnest—if I left it uncolored now, I would probably look 20 years older.