LONELINESS: Social isolation linked to biological age gap, higher mortality rate. “A new study from Mayo Clinic finds that socially isolated people are more likely to show signs of being biologically older than their age and more likely to die from a variety of causes. The research, published in the Journal of the American College of Cardiology: Advances, suggests that social connection plays an important role in overall physical health and longevity, and it should be addressed as a necessary part of the social determinants of health.”