A Cure for Disconnection

Loneliness is so insidious: It hides in plain sight and, unlike smoking or obesity, isn’t typically seen as a threat, even though it takes a greater toll on our well-being. The need for intervention is urgent, says Harvard physician and public-health researcher Jeremy Nobel. “It’s time for PSAs,” he says. “Something like ‘This is your brain. This is your brain on loneliness.'”