Regular exercise can boost the immune system but high intensity exercise can suppress it. So is it safe to exercise when you are already sick with a cold? The TriDoc looks at the evidence to help you decide when you can get that workout done or when you should pass. Ken Benesh was one of the creators and directors of the SBT GRVL race in Steamboat Springs. What was involved in making this race such a huge success and how can they top it in years to come? The Triathlete Routard goes to Mexico for a review of the popular late season IM Cozumel.