This fascinating video by ASAP Science explores the neurobiology behind love. It turns out that when we’re in love, our brains activate the same pleasure centers as when we take drugs like cocaine, thereby resulting in a psychological “high.” Specifically, when we are around the person we love, our brains release a number of chemicals, including dopamine, norepinephrine, and oxytocin, which generate sexual desire and that feeling of being bonded with another person. At the same time, our brains release lower levels of serotonin. Given that low serotonin is linked to obsessive-compulsive disorder (OCD), this could help to explain why people in love often report having obsessive thoughts about their partner.

Check out the video below to learn more about what happens to our brains when we’re in love.