Humans are social creatures: In this simple and obvious fact lies both the problem and the solution to the current crisis of loneliness. Making a case for loneliness as a public health concern, Surgeon General of the United States Vivek Murthy argues that it is affecting not only our health, but also how our children experience school, how we perform in the workplace, and the sense of division and polarization in our society. Mapping out the causes of loneliness and its sometimes devastating effects, Vivek also offers four strategies to help us as we nurture ourselves, help others, and seek to participate in community.