Key points from article :
Researchers compared social network scores with AI-predicted biological age based on electrocardiograms of over 280,000 adults.
A social network score assessed belonging to groups, social activity frequency, and marital status.
Higher social network scores correlated with a smaller biological age gap, regardless of age or gender.
People with weaker social connections showed signs of being biologically older than their chronological age.
Low social network scores were linked to the highest risk of death within a two-year follow-up.
Non-white participants had a higher biological age gap, especially with low social connections.
"Social isolation combined with demographic and medical conditions appears to be a significant risk factor for accelerated aging," - Amir Lerman, senior author of the paper.
Research by Mayo Clinic, published in the Journal of the American College of Cardiology: Advances.