Strong sibling bonds enhance well-being and happiness in older years, according to a new study.

Got siblings? Warm sibling bonds can boost happiness as you age, per a new series exploring how siblings influence us in various ways, from finances to mental health. Many of these relationships intensify during adolescence, but evolve into friendships and equal partnerships in adulthood. A strong, supportive sibling bond can significantly enhance well-being and happiness in older years.