Fun? No. Free-solo rock climbing, 7-days-per-week CrossFit, the "oh look I learned to play accordion to the amazement of everyone I know but it's been 6 weeks and now I am intent on becoming an expert in first-flush tea" kind of thingy, that was fun. I don't do any of that anymore, which I guess extends my life expectancy, but at the cost of who I am. It's not so much "not doing" these things as it is "not having a desire to do these things anymore" that bothers me most. Honestly, when (or if) I get to retire, the first thing I'm doing is trashing the meds and living.