Luke O'Neill

Is it bad?

Surely being in a very hot environment is bad for us.

And it is if you're in there too long.

And the optimum time, scientifically proven, kind of, is about 15 minutes.

Don't be in there for too long because then you get too hot.

and your core body temperature begins to get too high and that puts your body under huge stress.

But increasing your core body temperature a bit is good.

Now, why is it good?

Because it increases blood flow and you want to dissipate the heat.

Our bodies are what are called homeostatic machines.

We're trying to balance things the whole time.

If you overheat, we have wonderful cooling devices in our bodies and the blood will flow to your skin

And now the blood is 37 degrees, dissipates the heat.

And that's why you go red, because all the blood flow has increased to the skin.

And then secondly, of course, you start to sweat.

And the sweat is a way to dissipate heat, because as the water in the sweat evaporates, that lowers the temperature.

And now you keep the body temperature under control.

So these are normal responses to overheating.

And again, they must have evolved in Africa that if you got really hot.

you would begin to dissipate the heat because if the body temperature gets too high, that can damage your body.