According to a trio of researchers at Rutgers University, dopamine levels in the brain are central to the feeling of love. But there are significant differences between feelings of romantic love and long-term love.
Researchers scanned the brains of about 60 people in various stages of love. The scans show those people rejected in love had activity in the part of the brain associated with addiction.
Those in short-term relationships showed activity in the brain region associated with anxiety.
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Information from: The Star-Ledger, http://www.nj.com/starledger
