If you want to know how people become addicted and why they keep using drugs, ask the people who are addicted. Thirty-one of 75 patients hospitalized for opioid detoxification told University at Buffalo physicians they first got hooked on drugs legitimately prescribed for pain. Another 24 began with a friend's left-over prescription pills or pilfered from a parent's medicine cabinet. The remaining 20 patients said they got hooked on street drugs... 
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