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![According to the facial feedback theory, the simple act of putting a smile on your face can boost your mood. But research shows it doesn't work for everyone and can make some people feel worse.](https://woub.org/wp-content/uploads/2019/07/forced-smiling-cab06f2fe3d85e889a30540784170b4da0ac5ce3-e1561996942222-900x422.jpeg)
The Science Of Smiles, Real And Fake
By: Maanvi Singh | NPR
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According to the facial feedback hypothesis, the simple act of putting a smile on your face can boost your mood. But recent research shows pasting on a grin can have mixed results.