1 00:00:05,000 --> 00:00:10,000 Humans, like most other mammals, live in social groups. 2 00:00:10,000 --> 00:00:15,000 Humans are exquisitely sensitive to the behavior of others around us. 3 00:00:15,000 --> 00:00:22,000 Humans are motivated by a need to belong—also called the affiliation need. 4 00:00:22,000 --> 00:00:25,000 We seek contact with others and approval from others. 5 00:00:25,000 --> 00:00:32,000 Whenever we are deprived of human contact and approval, we feel distressed and anxious. 6 00:00:32,000 --> 00:00:39,000 This is especially true when we believe that others have deliberately excluded us 7 00:00:39,000 --> 00:00:49,000 Social isolation produces psychological pain in the form of depression, sadness, and anger, as well as triggering higher levels of aggressive behavior. 8 00:00:49,000 --> 00:00:57,000 Social isolation also impairs physical health, leading to more frequent illness and even an earlier death.