Humans are naturally social. Yet, the way of life in many countries like the United States is greatly reducing the quantity and quality of social relationships. Over the past two decades there has been a three-fold increase in the number of Americans who say they have no close confidants. In the UK, according to a recent survey by the Mental Health Foundation, 10% of people often feel lonely, a third have a close friend or relative who they think is very lonely, and half think that people are getting lonelier in general. There is reason to believe that people are becoming more socially isolated.