Thanks to remarkable new technologies and the widespread use of social media, we are more “connected” than ever before. Yet as a nation, we are also more lonely. In fact, a recent study found that a staggering 47 percent of Americans often feel alone, left out and lacking meaningful connection with others. This is true for all ages, from teenagers to older adults.
The number of people who perceive themselves to be alone, isolated or distant from others has reached epidemic levels both in the United States and in other parts of the world. Indeed, almost two decades ago, the book Bowling Alone pointed to the increasing isolation of Americans and our consequent loss of “social capital.” In Japan, for example, an estimated half million (known as hikikomori) shut themselves away for months on end. In the United Kingdom, four in 10 citizens report feelings of chronic, profound loneliness, prompting the creation of a new cabinet-level position (the Minister for Loneliness) to combat the problem.
More here – Scientific American