What My 100th Marathon Taught Me

John Kruse MD, PhD
5 min readAug 20, 2018

I ran and walked my hundredth marathon on my fifty-seventh birthday, through a beautiful wooded park on the outskirts of Paris. I felt great during the first of four loops of the course, like I actually was a runner again. Reality quickly caught up to me, as I had started too fast, and the second half of the race took a half hour longer than the first half. My legs were leaden and painful on those last two laps, and I was on the…

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John Kruse MD, PhD

Psychiatrist, neuroscientist, father of twins, marathon runner, in Hawaii. 100+ ADHD & mental health videos https://www.youtube.com/@dr.johnkruse6708