The science of love

http://www.youramazingbrain.org.uk/lovesex/sciencelove.htm
how to fall in love:

• Find a complete stranger.

• Reveal to each other intimate details about your lives for half an hour.

• Then, stare deeply into each other’s eyes without talking for four minutes.

"By analysing blood samples from the lovers, Dr Marazitti discovered that serotonin levels of new lovers were equivalent to the low serotonin levels of Obsessive-Compulsive Disorder patients."
"Oxytocin is a powerful hormone released by men and women during orgasm. Diane Witt, assistant professor of psychology from New York has showed that if you block the natural release of oxytocin in sheep and rats, they reject their own young. Conversely, injecting oxytocin into female rats who’ve never had sex, caused them to fawn over another female’s young, nuzzling the pups and protecting them as if they were their own."