About one in five Americans have engaged in some sort of consensual non-monogamy, or CNM, in their lifetimes it's about as common as owning a cat, researchers say. The ways that CNM emphasizes communication can be instructive for singles as well as people in other kinds of relationships.
The process of differentiation or knowing who you are and how you're different from your partner is another big factor in CNM that can help just about everyone.
