Loneliness doesn’t retire when we do. Sometimes it’s just a quieter house, fewer phone calls and too much solitude. A 2025 University of Rochester study of hundreds of adults found that people who regularly helped others felt less loneliness and more happiness. For anyone in retirement, that matters: social isolation can chip away at healthy aging and longevity, and one act of kindness and empathy can turn it around.Dot K., 78, a retired librarian and grandparent of six from Dayton, Ohio, almost ended a 30-year family tradition. A stranger’s kindness turned her handmade hobby into friendship, happiness, self-growth and orders from 14 countries.