Addiction

Love is like cocaine.

It affects a single pathway in the brain that is activated by the hormone dopamine.

Neurologists have compared the brain scans of those in love with those on drugs. It turns out drugs and love activate the same brain regions.

"Romantic love is such a euphoric 'high,' because it produces craving, obsession, compulsion, distortion of reality, emotional and physical dependence, personality change and loss of self-control.

Many psychologists regard romantic love as an addiction -- a positive addiction when your love is returned, a horribly negative fixation when your love is spurned and you can't let go," said anthropologist Helen Fisher.