For years, scientists have debated how best to assess brain levels of oxytocin, a hormone implicated in social behaviors. (sciencedaily.com)
Chronic stress relies on production of the hormone cortisol, which on its own can disrupt brain levels of happy hormones, like serotonin and dopamine. (taliand.com)
Bupropion increases brain levels of dopamine, the notorious «feel good» chemical that is also released when cocaine or amphetamines are taken. (health.com)