Humans are social animals. That means that our friendships, family, and other social networks are not just pleasures; they're also essential to our survival. New research presented at the 125th Annual Convention of the American Psychological Association finds that loneliness and isolation may be more significant public health issues than previously realised.
"Being connected to others socially is widely considered a fundamental human need—crucial to both well-being and survival," psychologist Julianne Holt-Lunstad of Brigham Young University said in a statement.
To quantify the impact of loneliness and isolation, Holt-Lunstad conducted two separate meta-analyses of the scientific literature, reviewing a total of 218 studies. Her first analysis found that higher social connectedness is linked to as much as a 50 percent decrease in risk of early death.
The second, which included data from more than 3.4 million people in North America, Europe, Asia, and Australia, suggests that social isolation, loneliness, and living alone can be as bad for a person's health as other common risks. (The AARP study also concluded that prolonged isolation carries the same health risks as smoking 15 cigarettes per day.)