CONAN360° LIVE Highlight: Jordan Schlansky's T-Shirt Masterclass | CONAN on TBS

All right, next question.

From Facebook, Rebecca Eleanor Pfeiffer asks,

"Why V-necks?

"What do you have against round-collared shirts?"

Rebecca on Facebook is asking me why I don't wear

what we call crew-neck T-shirts,

you can call them round-collar shirts

if you want a more convoluted way to describe it,

but maybe that blame goes to Rebecca and not you,

maybe I'm being unfair in the situation.

Rebecca, those are called crew-neck shirts,

with all due respect, and I'm wearing one right now.

I also wear V-necks at times, it's really a question

of releasing heat.

Okay, now the human body's internal core temperature

is 98.6 degrees as we all know, even though nothing

else around us is that temperature.

That means that we are raising our own core temperature

and expending energy in doing so.

That energy normally comes from the food that we eat.

We also sometimes, if we cover ourselves with

too many clothes or a jacket that's too thick

we may say, "This makes me hot."

In fact, the jacket or the blanket doesn't make you hot

as much as it prevents you from releasing your own heat.

You understand, your body internally is 98.6 degrees.

My responsibility to stay at an externally

comfortable temperature is to release that heat

into the environment.

If I'm covered, it impedes that release,

which could be beneficial in a cold climate.

In that case you don't want to release your heat

because you can't make the heat quickly enough

to counteract the cold of the environment.

However, in a hotter environment you do

want to release that heat, and the way you do that

is by exposing as much of your skin as possible

to the environment.

And short-sleeve shirts are a way to do that.