Social support is a peculiar force and can operate in two different ways. Plenty of research suggests that being alone in the world is stressful. Loners and lonely people tend to have more of just about every kind of mental and physical illness than people who live in rich social networks. Some of that is because people with mental and physical problems make fewer friends, and indeed, some potential friends may shy away from someone who seems maladjusted. But simply being alone or lonely leads to problems also. A lack of friends tends to contribute to alcohol and drug abuse.
