The document discusses how three neurotransmitters - dopamine, serotonin, and noradrenaline - play key roles in addiction. Dopamine is involved in reward pathways and addictive drugs mimic its effects, increasing risk of addiction to stimulants for those with excess dopamine. Serotonin regulates mood, and low levels increase risks of addiction to alcohol and opioids. Too much noradrenaline causes anxiety, raising risks of addiction to anti-anxiety drugs. Genetics and environmental stress can also influence addiction risks by impacting neurotransmitter balances. Treatment aims to stabilize neurotransmitter levels through medication or behavior changes.
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