When it comes to happiness, older people seem to know something that the rest of us don't because a number of studies have found that older people tend to be some of the happiest people around. 

Why this is, however, is still a mystery to scientists because they have yet to find what exactly is causing this happiness. Chances are, it's a number of things: One study in 2013 suggested the reason is because older people are more experienced, and therefore, better at dealing with negative emotions like anger and anxiety. But another, more recent study, reported that the cause is that older people are more trusting, which comes with a number of healthy psychological benefits that lead to happiness.

Whatever the reason, if you're not happy right now, you can rest assured that your chances of happiness in the future are good.