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Why Do We Blush?

You just wiped out in front of a big crush. Your face goes bright red. You can’t fight it. Why do we blush like this? Trace takes a look at how our bodies visually process our emotions.

Check out Stuff To Blow Your Mind’s episode on the embarrassing science of bushing here:


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Why Do People Blush?

“You can’t believe the words that have just come out of your mouth. You certainly didn’t mean to insult the woman in line ahead of you, but it’s too late now.”

Why Do We Blush?

“As soon as he walks into the room, flashing you a quick grin, your cheeks take on a light shade of red. You feel the crimson washing over your face, but there’s nothing you can do — you’re blushing.”

The Science of Tears

“When was the last time you had a good cry? Shedding tears may be healthier than you thought, and the secret lies in the chemical composition of tears.”

This Vale of Tears

“Q. Is it true that women’s tears contain an enzyme that can be released only by crying, meaning they are quicker to cry under emotional stress?”

Why do humans cry? A new reading of the old sob story

We all cry, but what biological function does it serve, and why are humans the only species to shed tears of sorrow and joy?”

Why We Evolved to Cry

“What’s the use of crying when you’re sad? Other animals shed tears, but humans may be unique in shedding tears of grief, and Robert Provine says that he knows why: to send a signal.”

Are humans the only primates that cry?

“This is an interesting question and one that is very well phrased. Humans are primates and it is important to consider our behaviour within the evolutionary context of other primates.”

Tearing: Breakthrough in Human Emotional Signaling

“Tearing is not a benign secretory correlate of sadness or other emotional state,
but a potent visual cue that adds meaning to human facial expression, the tear effect.”

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