One of the most repeated truisms in social-science research is: “The No. 1 best thing for your well-being is your relationships.” Despite using this line myself many times, I’ve nevertheless questioned its universality. Who hasn’t nodded along in recognition while listening to a story about a nightmare roommate, or had a narcissistic relative who makes everything about himself? The Subreddit r/FriendshipAdvice would be a ghost town if everyone’s relationships were truly enhancing their quality