Cooler temperatures brings colder water for open water swimming. With that comes the risk of hypothermia. What happens to the body when we get cold and how can we prevent the worst complications of lower core temperatures? Are there ways that we can adapt to the cold in order to better resist the dangers? I go over the science with Juliet Hochman in the medical mailbag. Then, an interview with professional triathlete Lesley Smith who has more than twenty 70.3 podium results to her name in her ten seasons as a pro.