Happiness is Truly Contagious - Harvard Study Shows 12-08

By John Schinnerer, Ph.D.

Happiness is catching. Happiness spreads through friends, spouses, siblings and neighbors. There is a ripple effect whereby happiness extends widely through social networks, even between people who may not know one another. One's happiness depends on the degree of happiness of those surrounding her.

Happiness at Harvard?

A study performed at Harvard University, by Nicholas Christakis, is the first of its kind to demonstrate the existence of clusters of happy and sad individuals. Happiness depends upon the happiness of those around them. What's more, individuals who surround themselves with happy people are more likely to be happy in the future. One's future happiness can actually be predicted by the number of happy people surrounding them and the degree to which the social network as a whole experiences constructive emotions, such as happiness. These findings come from an analysis of the Framingham Heart Study social network, a longitudinal study that has followed nearly 5,000 people for over 20 years.

Happiness and Social Networks

Study findings suggest that happiness results from the spread of happiness throughout social networks and not merely from individuals choosing to surround themselves with like-minded individuals. For example, if your next door neighbor becomes happier due to a job promotion, your likelihood of becoming happier increases by 34%. And this happiness effect can linger for up to one year.

Your Happiness Affects People You Don't Even Know

This relationship between individual's happiness holds true for the first three degrees of separation. For example, when John becomes happier, it buoys the happiness of John's friends as well as the friends of John's friends. So there is a ripple effect of happiness within social circles where happiness is contagious and spreads similar to the waves of a wireless network. And we are consciously aware of little, if any, of it.

In the past five to ten years, more and more studies have looked at happiness and what determines it (e.g., genetics, money, elections, marital status and emotional management). However, no study has looked at human happiness as it relates to the happiness of others. While the study is the first of its kind and needs to be replicated to ensure the accuracy of these findings, the findings are remarkable and exhilarating.

Emotional Contagion - Emotions Spread Like a Super Bug

Emotional contagion, the process by which one person picks up the feelings of another, has been scientifically documented since 1994. Emotions may be 'caught' from others for a length of time ranging from seconds to weeks. This is particularly true of destructive emotions - anger, fear and sadness. In fact, the hard part is not 'catching' the emotions but in protecting oneself from them, keeping them at bay. Until this study, emotional contagion had not been documented for any of the positive, constructive emotions such as joy, contentment, peacefulness or happiness.

The difficulty is that most people primarily feel destructive emotions. Most people experience more destructive emotions than constructive emotions.

Do You Have a Happy, Thriving Life?

On the other hand, roughly 10% of adults in the United States feel three times as much positive emotion as negative. This 3:1 ratio is the measuring stick for a thriving happy life as set by Barbara Fredrickson at UNC Chapel Hill. It appears that this top 10% is raising the level of happiness of many others. Imagine if it were possible to raise this thriving, happy portion of the population to 15% or 20%.

Assuming the percentage of the populace experiencing happiness could be improved, here are just a few of the possible societal benefits:

• The economy would improve (e.g., higher ratios of positive, open-ended inquirie