Addiction Hijacks the Brain
Marc Lewis writes in Aeon,
…brains change with addiction.
…authorities warn us that addiction ‘hijacks the brain’, replacing the capacity for choice and self-control with an unremitting compulsion to drink or use drugs.
…Most obviously, addiction is characterized by a strong desire to pursue a substance or behavior. The substance or activity temporarily relieves the desire, but a negative emotional state is left in its wake, into which loss, disappointment and anxiety flow once the activity is finished or no longer satisfies – or once the drugs or booze are gone. And so, desire builds once again. In this way, addiction perpetuates the need it was intended to satisfy and, through repetition, the addict learns to satisfy the need by getting more, doing more, thus further consolidating the learning – and the neural patterns underlying it. What fires together wires together. Biology is not a prison, but you can’t flick it on and off with a switch.
Brian taught in a community college in Cape Town, ran a successful business, and generally used his fine mind to good advantage. But the pileup of obligations and a mild attention-deficit problem saw him begin taking various stimulants to stay awake and clear-headed. Within two years, he was smoking crystal meth several times per day. Sleep became sporadic and unpredictable. He could no longer think in straight lines, and fantastical whims soon replaced his customary rationality. His business fell apart, he moved in with his dealer, and his precious relationship with his young daughter turned into a parody of parenting, with him sneaking out to the car every hour or two for another hit. Meth comes on strong and brings with it clarity, optimism and brilliant energy. But Brian’s sleep loss meant that the high was increasingly short-lived. With the first hints of loss, he would grab for his pipe, eager beyond reason for another launch into stratospheric relief.
…Addiction isn’t about rationality or choice; it’s not about character defects or bad parenting, even though childhood adversity is clearly a risk factor. Addiction is about habit formation, brought on through recurring, self-reinforcing feedback loops. And although choice is not obliterated by addiction, it is much harder to break deep habits than shallow ones.
…Not every addict grows through and out of his or her addiction. Some remain enslaved for life, and some die. But the very stuckness of addiction, the redundancy and stupidity of chasing the same narrow goals each day, constitutes a worthy challenge for all that’s creative and optimistic in the human repertoire.
Read more here.
Source: http://bobagard.blogspot.com/2017/01/addiction-hijacks-brain.html
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