Scientists link friendship to a remarkable range of benefits—both physical and mental: lower blood pressure, stronger immunity, reduced dementia risk, better sleep, and longer life. But technology and the pace of contemporary life threaten our ability to connect. Cutting-edge science reveals how isolation can harm us, while meaningful relationships can heal. Based on "Friendship" by Lydia Denworth.

Air Date: Sat, Jun 27, 2026 8:00 PM