"Over the years, I’ve used plenty of alcohol and drugs (both ..." — Elizabeth Gilbert quote meaning

Over the years, I’ve used plenty of alcohol and drugs (both legal and illegal) in order to get numb or high—but not nearly at the level that I have used people. I don’t actually need alcohol and drugs to alter my consciousness, because the pharmacy built right into my brain churns out enormous amounts of dopamine as a reward for the experience of sexuality, physical closeness, and emotional arousal—and at a rate that is esti mated to be ten times higher than that of a so-called normal person. And it’s not only dopamine that my brain overproduces when I’m infatuated with someone; it’s also adrenaline, oxytocin, serotonin, and norepinephrine. When combined in a powerful rush, these hormones fill me with an almost godlike sense of euphoria, removing my ability to feel pain or calculate risk, warping my perception of reality, and taking away my desire for sleep, food, and fulfillment of other basic life-supporting needs. Other people might experience pleasurable sensations from romance, fantasy, or sex; I get wasted.