How to Exercise in the Heat

When the temperature rises, with or without humidity, and you have to get that workout done outdoors, the solution is high-intensity interval training, but only if you’ve been cleared by your physician and cardiologist for intense exercise. Walking, running, swimming, or biking, intervals can help you get an intense workout in a short time. That’s the approach I used in Austin, and you can, too.

The location where I stayed in Austin was on a very hilly road—more mountain than hill. I have nothing like that kind of hill anywhere near my neighborhood. The approach was . . .

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