This week TJ teaches you why you should NEVER drink water when racing or training for an Ironman or Ironman 70.3. One of the most common mistakes is not training how you will race. In this video we show you how to preform your own sweat test at home to find out how to optimize your hydration in training and racing. For triathlons you need to take every advantage you can and training properly for the swim, bike and run is crucial, as each of them will effect the others. Don't bonk for yourself, learn from those who have bonked before you!