Throughout my years in triathlon I’ve heard a lot of athletes ask about a particular physiological subject of which I’ve never placed much stock in myself. A simple topic that we as a nation are obsessed with: body weight.   Macca’s Story The general consensus among endurance athletes, many of which are triathletes, is that “the lighter I am, the faster I will go.” Chris McCormack (affectionately known at Macca) directly challenged this line of thinking in an article for Triathlete from June 2015. Chris began by noting, “I’d say 99 percent of people I talk to in this sport believe weight’s relationship to performance is as simple as ‘less is better.’ This is a half-truth – the weight puzzle…