"Treat casual daily interactions as a health practice Beyond close friendships, the same large-scale research identified "social integration" — the breadth of people you talk to as you move through your day — as one of the strongest predictors of how long you live. Pinker explains this means "not just the people you're really close to, but do you talk to the guy who every day makes you your coffee, do you talk to the postman, do you play bridge or poker, have a book club." Treating small talk with neighbors or baristas as genuinely valuable health behavior, rather than trivial pleasantry, is a concrete and costless daily change. Source: Susan Pinker, TED Talk, The Secret to Living Longer May Be Your Social Life"