Friendship research supports similarity as an important factor in forming and maintaining relationships, a phenomenon called homophily. People often connect with others who share interests, values, backgrounds or behaviors because similarity can make interaction easier and reinforce a sense of compatibility. MLA source: McPherson, Miller, Lynn Smith Lovin, and James M. Cook. “Birds of a Feather: Homophily in Social Networks.” Annual Review of Sociology, vol. 27, 2001. Want more interesting content like this ? Follow gravitonomy :) #friends #relationships #science #homophily #psychology