Everyone could use more happiness; we are never truly 100% happy with our lives. If you want to know the science of happiness and how to be more happy, this infographic does a great job of breaking it down for you. The hippocampus is the area of the brain that is responsible for happiness and memories, so you really should know how to feed and nurture it to help boost your mood in down times.
Can you guess what the top four happiest occupations are in the world? What about the two countries with the most optimistic people, or the two countries with the most satisfied people are? The answers, which can be found on the infographic, may surprise you.