Divorced women, compared to married women, are less satisfied with their lives, which is not surprising. But they're actually more cheerful, when you look at the average mood they're in in the course of the day.

If you can't take the time for a vacation right now, or even a night out with friends, put something on the calendar - even if it's a month or a year down the road. Then whenever you need a boost of happiness, remind yourself about it.

Facts that challenge basic assumptions-and thereby threaten people's livelihood and self-esteem-are simply not absorbed. The mind does not digest them.

Being wealthy is often a powerful predictor that people spend less time doing pleasurable things and more time doing compulsory things and feeling stressed.

The planning fallacy is that you make a plan, which is usually a best-case scenario. Then you assume that the outcome will follow your plan, even when you should know better.

Although professionals are able to extract a considerable amount of wealth from amateurs, few stock pickers, if any, have the skill needed to beat the market consistently, year after year.

It's a wonderful thing to be optimistic. It keeps you healthy and it keeps you resilient.