Turn that frown upside down
We frown when we’re upset or worried. We smile when we’re happy or excited. But what’s the science behind it?
36. We use muscles to smile
People always say that it takes no effort at all to produce a smile. They’re not exactly right.
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In fact, the act of smiling involves the manipulation of up to 17 muscles. That’s probably why you sometimes ache from laughing or smiling too much.
35. But frowns also need muscles
But in a way, they’re right. Smiling uses far fewer muscles than frowning – the sad equivalent.
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You actually use around 43 muscles to frown, in fact. Next time you think about it, remember that a smile is less effort!
34. You think incredibly fast
So much so, that the nerve impulses sent from the brain move at a speed of around 274 km/h.
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