A relationship refers to the way people or things connect, associate, and behave towards each other. It can be a connection by blood, marriage, or shared feelings, involving some degree of influence on each other's thoughts, feelings, and actions. Relationships range from superficial to intimate and can be characterized as impersonal or personal, voluntary or involuntary, and platonic or romantic. Common types include family, friendships, acquaintanceships, and romantic relationships.
Healthy relationships are characterized by honesty, mutual respect, good communication, and the ability to solve problems. They encourage personal growth, add meaning to life, and provide a sense of purpose. Research indicates that strong, healthy relationships can lead to numerous benefits, including lower rates of anxiety and depression, higher self-esteem, a stronger immune system, and even a longer life. The field of "relationship science" explores how relationships work, what makes them satisfying or unsatisfying, and what benefits they offer.