I reckon I've limited my lifespan by washing my hands in...paint thinners!

Did it for many years, nearly every day.
Used to do alot of 2-pack polyester & polyurethane painting (kitchen joinery). Finished in spray booth, washed hands in thinners & then soap - purely DUMB! Also did a lot of MDF work, and although limited the amount of dust inhaled, the handkerchief wasn't a pretty sight at the end of a day.
As you get older you start to realise how many stupid & life-shortening things you've done - including mb stunts, handyman-style electrical work, chemicals inhaled etc.