Research from De Montfort University and University of Ulster, published in Journal of Family Psychology, found that people who grow up with sisters tend to be more happier, optimistic, and emotionally resilient. Sisters promote open communication and help their siblings express emotions more freely—fostering stronger mental well-being. The study showed that having a sister can encourage greater emotional support and a more positive outlook on life, regardless of age or gender. Follow for more 👉 @mindset.therapy