Marathons brought an intensity to Mel Plumridge's life. Exercise was an area he could control after his diagnosis, and it helped him focus on the path ahead. Watch more of his story on WebMD.com. #WebMD #CLL #ChronicLymphocyticLeukaemia #BloodCancer #CancerPatient #CancerJourney #Resilience #Running #Marathon #MentalHealth #Inspiration