Compassion and empathy from the people who share your name, it turns out, aren’t optional extras. They’re what keep families alive in every sense. A meta-analysis of 178 risk estimates drawn from 50 studies, covering over 100,000 people, found that family support was more strongly linked to living longer than support from friends—and even a moderate amount was enough to make a difference. The stories below are full of it: a brother fixing what an ex-husband broke, a father sitting through a sleepless night, a mother-in-law baking a birthday cake she’d never made before, all quietly building the kind of happiness that comes from being shown up for.