What can a smile can do

When we feel great, a smile comes naturally. It's an outward sign of joy, happiness, appreciation, amusement, excitement, or contentment.

It's not natural to smile when we're sad or upset. But it turns out that smiling might be the best thing to do when you're ready to shift into a brighter mood.

Scientists have found that smiling on purpose can help people feel better. Just the simple act of putting a smile on your face can lead you to feel actual happiness, joy, or amusement.

Smiling on purpose changes brain chemistry. So it can be a big help to people who are dealing with depression and anxiety. But how do you smile if you're not feeling it?