We can’t always be optimistic but on Look On The Bright Side Day, celebrated on December 21, we can always try our best to be! It’s quite normal to feel a little down on this day since it falls around the winter solstice in the northern hemisphere, which means things tend to get a little cold and cloudy outside. But, fret not, because every cloud has a silver lining. While it may all sound very cliché, being optimistic is scientifically good for our bodies and minds. Just like a pessimist might see the glass as half empty, Look On The Bright Side Day is all about seeing the glass as half full!