Answers to the most fundamental question in life? Talking to scientists and sufferers, The Secret Life of Happiness explains what brings you up and what grinds you down. What are the secrets of a happy life? Love? Money? Beauty? Success? A bit of all of these things goes a long way, but they are not the keys to happiness. In fact money and beauty can be the path to a miserable life. The Secret Life of Happiness, shot in Britain and America, talks to millionaires and models and finds out why they are less than happy; it shows how much a good marriage matters, and reveals how your chances of having a happy marriage may be determined by your childhood relationships. The Secret Life of Happiness explains why playing computer games can make you feel good, why being a geriatric pole-vaulter could be a good thing and analyses the science behind why for some people 'the glass is half full' and for others it's 'half empty'. The programme also meets some cutting-edge scientists who are using human experiments to find out what it is that happens in our brains to make us feel good. It is well known that man can simulate those feelings using drugs, but we also have our own naturally produced chemicals that switch on when we achieve certain goals in life, or even simply complete a satisfying task. And finally The Secret Life of Happiness shows why laughter really does make you feel happier. A BBC educational resource looking at the science of happiness and why laughter really is the best medicine.