Dr. Craig Heller

When it comes out, it's cold.

You just sealed up all the heat in your body.

Yeah, right.

We, once again, had just standardized on three minutes.

And part of the reason for that is that the rate of heat loss is an exponentially declining curve.

And three minutes sort of gets the best part of the curve.

So you can go longer and get more benefit, but the biggest bang for the buck is in the first two, three minutes.

You know, it would be experimental.

Sure.

Your idea of frozen peas is a good idea.

After you hold the cold peas in one hand and you switch it to the other hand, if someone then comes and feels your hand, is it warm or cold?

If it's cold, it means you vasoconstricted.

If it's warm, it means the hot blood is still going there.

And the key is for it to not vasoconstrict.

Or could I put my feet on them?

The problem is back to boundary layers again.

If you don't have a convective stream of the cooling medium, the heat sink is not as effective because there'll be a boundary layer developed between the heat sink material and your skin.

So that decreases its efficacy.

But once again, it depends on the surface area to get any benefit at all.

We have a study that we published, which was investigating the standard treatment for hyperthermia in the field.