Sixty-eight-year-old John Guthrie has had two heart attacks in the last 20 years.⁣ ⁣ But he and his cardiologists know movement is medicine.⁣ ⁣ While CrossFit keeps him healthy and moving, he volunteers at local hospitals to share his story of life after heart episodes.⁣ ⁣ #crossft #masterscrossfitgames jgocd crossfit_zone_