Recent studies buttress the unpalatable truth that falling in love is, in some ways, indistinguishable from a severe pathology. Behavior changes are reminiscent of psychosis and, biochemically speaking, passionate love closely imitates substance abuse. Appearing in the BBC series Body Hits on December 4, Dr. John Marsden, the head of the British National Addiction Center, said that love is addictive, akin to cocaine and speed. Sex is a “booby trap”, intended to bind the partners long enough to bond.
Using functional Magnetic Resonance Imaging (fMRI), Andreas Bartels and Semir Zeki of University College in London showed that the same areas of the brain are active when abusing drugs and when in love. The prefrontal cortex – hyperactive in depressed patients – is inactive when besotted. How can this be reconciled with the low levels of serotonin that are the telltale sign of both depression and infatuation – is not known.
The initial drive – lust – is brought on by surges of sex hormones, such as testosterone and estrogen. These induce an indiscriminate scramble for physical gratification. Attraction transpires once a...