Happiness in life is as much down to having the right genetic mix as it is to personal circumstances according to a recent study.

Psychologists at the University of Edinburgh working with researchers at Queensland Institute for Medical Research in Australia found that happiness is partly determined by personality traits and that both personality and happiness are largely hereditary.

Using a framework which psychologists use to rate personalities, called the Five-Factor Model, the researchers found that people who do not excessively worry, and who are sociable and conscientious tend to be happier. They suggested that this personality mix can act as a buffer when bad things happen, according to the study published in the March issue of Psychological Science, a journal of the Association for Psychological Science.