New York is great in the Summer. Unlike the Winter time everyone has smiles on their faces. Even on the hottest day in the gym, I love that New Yorkers take it in stride. And, just like Winter Time, New York weather is extreme. Mid nineties on the thermometer with 60-75% humidity can literally make your skin burn. Im not joking when I say its hot. So what are the limits of our training when it gets this hot outside? When is training in the heat too much. I have dug around and found some surprising things about High Heat Training that might surprise you.