Depression has been called the worlds number one public health problem. In fact, depression is so widespread it is considered the common cold of psychiatric disturbances. But there is a grim difference between depression and a cold. Depression can kill you.

People who expect to feel guilty tend to be more sympathetic, to put themselves into other people's shoes, to think about the consequences of their behaviour before acting, and to treasure their morals. As a result they are less prone to lie, cheat or behave immorally when they conduct a business deal or spot an opportunity to make money, studies suggest. They are also likely to make better employees because people who think less about the future results of their actions are more likely to be late, to steal or to be rude to clients.

Perfectionism becomes a badge of honor with you playing the part of the suffering hero.

That's one of the peculiar things about bad moods - we often fool ourselves and create misery by telling ourselves things that simply are not true.

Guilt serves a powerful social function in terms of policing our behavior.

It can be helpful simply to make a written or mental list of the things you do each day. Then give yourself a mental credit for each of them, however small. This will help you focus on what you have done instead of what you haven't gotten around to do. It may sound simplistic, but it works.

Reaching for the stars, perfectionists may end up clutching at air.