This study from 1999 used blood tests to confirm that the serotonin levels of the newly in love very closely resembled the serotonin levels of people who had been diagnosed with obsessive-compulsive disorder.
To istraživanje iz 1999. koristilo je krvne nalaze kako bi potvrdilo da razine serotonina friško zaljubljene osobe nalikuju razinama serotonina ljudi kojima je dijagnosticiran opsesivno-kompulzivni poremećaj.