I ran in the Osaka Marathon! I hadn't ever planned to do a marathon, cuz, well, I don't think they're good for longevity. That said, when some friends asked me to run for charity, I decided it is a worthwhile thing to have done at least one.
I wrote up the marathon and the science I found while doing a 16-week training plan, as well as the impact on my bloodwork.
https://www.unaging....first-marathon/
(Spoiler: it's all about the gels.)