Why Do We Blush?

Why Do We Blush?

Humans are the only species that blush.

02:19

from SciShow

Key Facts In This Video

  • 1

    Your sympathetic nervous system kicks in when when you begin to blush. (0:33)

  • 2

    Some scientists believe blushing evolved as a trait to help us survive and communicate socially. (1:22)

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