Happiness is an elusive goal; everyone seems to want it, but by all the "shelf help" books out there my guess is that we are still searching for it.
Sure it’s not easy to be happy most of the time and many of the solutions suggested in popular culture take a fair bit of effort and TIME, the one thing we all seem to be short of in modern society.
For example a commonly cited one is to do more exercise. A study cited in the book: “The Happiness Advantage” also confirmed the importance of exercise on our happiness level. Basically, this study looks into three groups of depressed patients found that exercise had the biggest effect in reducing depression.
Others suggest all you need to do is get more sleep. True we spend roughly one third of our lives sleeping, so you cannot underestimate the importance of sleep, in particular nanna naps. An interesting study in 2011 from BPS Research Digest showed how sleep affected our happiness, in particular that people who take an afternoon nap are desensitized to negative emotions and more responsive to positive ones. But who has time for a nanna nap and unless you work at Google is that acceptable behaviour in your workplace?