DOPAMINE can overtake the rational parts of your brain."

Fisher suspects that the dopamine high of first love is meant to be a merely transient pleasure. "When I first started looking at the properties of infatuation, they had some of the same elements of a cocaine high: sleeplessness, loss of a sense of time, absolute focus on love to the detriment of all around you. People walk out of marriages, abandon children. Infatuation can overtake the rational parts of your brain."