Don't get beat down by the heat and humidity whether you work or work out outside this summer. Prepare your bag for hydration, electrolytes, cooling, and change of clothes options. If you do this right, you may find yourself tougher, more resilient to the extreme temps (over time) and still improve performance. It all comes down to body heat - Half of your fatigue is due to body heat.  Cool down = second wind.  See more training ideas at https://www.stewsmithfitness.com