I’d previously learned that family history can predispose someone for addiction, but Dr. McCauley told us that genes alone don’t do the job and do not necessarily doom someone to addiction. There is apparently “good evidence that genes combined [emphasis added] with severe environmental stress cause addiction.” He emphasized that this isn’t the kind of stress we usually think of in our normal, harried lives. It’s extreme stress resulting from traumas such as physical abuse, rape or molestation, extreme violence or war, mental illnesses such as anxiety and depression, ADHD, or post-traumatic
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