Strong friendships may literally slow aging at the cellular level

Scientists discovered that lifelong social support can slow biological aging. Using DNA-based “epigenetic clocks,” they found that people with richer, more sustained relationships showed younger biological profiles and lower inflammation. The effect wasn’t about single friendships but about consistent connections across decades.

from Relationships News -- ScienceDaily https://www.sciencedaily.com/releases/2025/10/251004092917.htm