Scientists haven’t developed any magic love potions that you can use to make someone fall in love, but chemistry does play an important role in how a relationship progresses.

Did you know that raw lust is characterized by high levels of testosterone? The sweaty palms and pounding heart of infatuation are caused by higher than normal levels of norepinepherine. 

Meanwhile, the ‘high’ of being in love is due to a rush of phenylethylamine and dopamine. Lasting love confers chemical benefits in the form of stabilized production of serotonin and oxytocin.

Can infidelity too be blamed on chemistry? Perhaps in part. Researchers have found that suppression of vasopressin can cause males (voles, anyway) to abandon their love nest and seek new mates. Hey, you got to have chemistry!