BOSTON - A new study finds that even if you just fake a smile, you may feel happier. Researchers at Stanford University led a global study involving more than 3,800 participants from 19 countries.

The mechanics of how smiling might make us feel happier aren’t yet known, said the study’s lead author, Nicholas Coles, a research scientist at Stanford University. One possible explanation is ...

Other bodily experiences, like clenching muscles, could make someone feel more tense through a similar type of so-called sensorimotor feedback. But exactly how this plays out in the brain is unclear.

You can spend hundreds on supplements, or you can smile more. It lowers stress. Boosts immunity. Drops your blood pressure. Lengthens your life. Even a fake smile can trick your brain into feeling ...

You’ve probably heard the claim that it takes more muscles to frown than to smile. It’s usually framed as a feel-good reason to turn your frown upside down – less effort, more joy. But ...