WEBVTT

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PROFESSOR: Hi.

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I just came from the icy
cold weather of Boston

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where I felt like my toes were
going to freeze and drop off.

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And the question I
want to ask you is,

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what makes the difference
between one person who can

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withstand the cold very well
and one person who cannot?

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And what is the difference
between these two people?

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Sorry, part of my speaking
fast is because it's really

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cold outside.

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So the question is,
how can one person

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withstand the cold
really well and go out

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jogging in the open without
wearing much clothing?

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They can just wear shorts and
shoes and just go running.

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Whereas people like
me have to wear two,

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three, layers, and they
still feel very cold.

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We still feel like
our appendages

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are going to drop off.

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So what makes the difference?

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Could it be that some
are more fit than others?

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Or some have better
tolerance to the cold?

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Or could it be some
have a high metabolism

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that they can burn more energy
faster so that they can get

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heat into their bodies faster?

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Or is it that some people have
shorter arms and shorter legs

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so they lose heat
less and therefore can

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withstand the cold better?

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So what answers all
these questions?

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Watch my video to see.