India, Feb. 23 -- Want to make the world a friendlier place? It could be as simple as watching a short video. A recent study in the European Journal of Social Psychology found that an 11-minute clip about our shared genetic heritage can make people more accepting of those from different countries. It's a quick but powerful way to reduce prejudice and foster a sense of global unity.

The research was driven by concerns over rising nationalism and bias against outsiders. With many leaders pushing exclusionary narratives, negative stereotypes continue to spread. However, this study suggests that reminding people of our deep connections could be a simple and effective way to promote understanding. (Also read: Looks or kindness? New study reve...