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B1 Intermediate English 5:32 Educational

The science of laughter - Sasha Winkler

TED-Ed · 1,620,092 views · Added 3 months ago

Learning Stats

B1

CEFR Level

5/10

Difficulty

Subtitles (77 segments)

00:07

Isn’t it odd that, when something’s funny,

00:10

you might show your teeth, change your breathing,

00:13

become weak and achy in some places, and maybe even cry?

00:18

In other words, why do we do this bizarre thing that is laughter?

00:24

When you laugh, your abdominal muscles contract rapidly.

00:28

This alters your breathing patterns,

00:30

increasing the pressure in your chest cavity, and pushing air out,

00:34

which might audibly emerge as a snort, wheeze, or vocalization.

00:40

Because you’re exerting your abdominal muscles much more

00:43

than you usually would while talking,

00:45

they may start to hurt.

00:47

Laughter also inhibits your reflexes and muscle control,

00:51

causing sensations like leg weakness.

00:54

So, where does this funny phenomenon come from?

00:58

Because there’s no archaeological record of laughter,

01:01

it’s impossible to say exactly how and why it evolved,

Full subtitles available in the video player

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