Dr. Craig Heller

He's sitting down and putting his hands in the devices that we had built, which were cooling the palms of his hands.

Yeah, that's what we were doing.

We standardized the interval for resting or cooling.

The point is he got to his fifth set, and all of the sets were above what he had done on the previous day.

And he said, you know, I'm not tired.

I can do another set.

And then I can do another set.

I can do another set.

I can do another set.

So from one day to two or three days later with cooling, he doubled the total number of dips.

Right.

So then he kept coming back for four more weeks, twice a week.

And by the end of that month, he was doing 300 dips.

So he tripled.

He tripled.

He essentially tripled.

Here's a professional athlete at peak physical conditioning, and he triples what he can do.

We haven't done a lot in the field.

I mean, outdoors, most of our endurance has been in a hot room with treadmill work and so forth.

So the very first experiment, we had, I think, maybe 18 subjects just off the street.