Started smoking cannabis at age 17, now 64. Not daily, but more often than not. Started running at age 52 after starting to tub up. Went to vaping & edibles exclusively about 3-4 years ago. That made a huge difference, like over 2 minutes in my 10K time. I vape (in a volcano) good bud, that I grow myself. Try to run 4-5 times a week, 25-30 MPW, 9-12 LR, speed work every other week. Have run a lot more, like 60K on my 60th birthday & several ultras & marathons, but hey, I'm freakin' 64 & goin' downhill. All I'm tryin' to do now is delay the inevitable.