When you're feeling down and don't have time for your typical pick-me-ups, you may follow the classic advice to fake a smile ...

But it may also be true that people feel happy because they smile. Faking a smile might boost your mood, reduce your stress, and help you bounce back from challenges fast. But, you may have also ...

But the thing is, they're un-fakeable. The Association for Psychological Science sketches out the physiological reasons why: A smile begins in our sensory corridors. The ear collects a whispered word.

the key difference between this “real” happy smile and a “fake” happy smile lies in the orbicularis oculi – muscles that wrap around the eyes. All smiling involves contraction of the ...