I have a quick comment/question. I train a lot of young athletes like hockey players and lacrosse players, as I was a former hockey player myself ...but it also run a boxing gym, as I cut into Boxing and boxed professionally for a few years. I keep the gym. Relatively warm, even though we have air conditioning. I want the athletes, especially the boxers, to get comfortable with being uncomfortable. When I was boxing professionally, I was training with sweatsuits on in the heat and obviously it was very uncomfortable, but I got really used to it. Is there a level of a acclimatization when training in the heat or cold weather? I got really used to training in the heat and could deal with it very, but I know there are a number of performance decreases as soon as the heat increases. Would love to know some thoughts.