Physical pain is unpleasant, yet it’s vital for survival because it’s a warning that your body is in danger. It tells you to take your hand off a hot burner or to see a doctor about discomfort in your chest. Pain reminds us all that we need to take care of ourselves. Feeling lonely is the social equivalent to feeling physical pain. It even triggers the same pathways in the brain that are involved in processing emotional responses to physical pain.
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