Historically, humans have needed to rely on others for survival. When we lose that connection, it can have an effect not only on our mental health, but also our physical health.
- A meta-analysis of 70 studies found that people who were socially isolated or lonely were much more likely to die prematurely.
- One study equated this increased risk in early mortality to smoking 15 cigarettes a day.
- Social isolation and loneliness are also associated with the onset of chronic conditions like heart disease.