It's a scientific fact that loneliness triggers physical changes that can impact long-term health. Studies show that when people feel socially isolated, their immune systems respond with increased inflammation and reduced defenses, making them more vulnerable to illness. The world saw this play out during the COVID-19 pandemic, which most of us would rather forget.
On the positive side, strong social ties are linked to longer, healthier lives; friends can help us sleep better, recover faster, and even heal more quickly from minor wounds. Recent research using DNA-based “epigenetic clocks” reveals that lifelong social support may actually slow biological aging.
Intrigued? Click through the following gallery to see how friendship shapes our health and extends our lives.