I'm over 50 and still coding. I do feel I'm much easier to get tired and sleepy and less productive these days even though I jogging daily. Still having kids in

I'm over 50 and still coding. I do feel I'm much easier to get tired and sleepy and less productive these days even though I jogging daily. Still having kids in the house did not help either. I tried startup, working at a startup now, and plan to re-try startup later, but feeling tired really lowers my productivity these days, I do think age(50+) plays a role there at least to me. Then the heavy stock loss this year made my finance situation shaky, that also impacts my efficiency of work though I don't think about it all the time.