CORTISOL Increases anxiety, fear, stress High levels associated with unhappiness DOPAMINE Increases pleasure associated with craving (the "go-get-it" neurotransmitter) SEROTONIN Increases sense of well-being, reduces fear and anxiety Subnormal levels associated with depression OXYTOCIN Increases empathy, love, bonding PROLACTIN Decreases craving, increases sleepiness (the "whoa!" neurotransmitter) |