Alcoholics lack a key enzyme in the brain – and this creates a 'vicious cycle' of addiction. In a test on rats, production of the enzyme PRDM2 in the brain's frontal lobe dropped and this hindered impulse control

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Alcoholics lack a key enzyme in the brain – and this creates a 'vicious cycle' of addiction. In a test on rats, production of the enzyme PRDM2 in the brain's frontal lobe dropped and this hindered impulse control