People that are dependent on marijuana may be using it to cope with a mental health disorder. Masking mental illness with weed can turn into dependence.

One of the more difficult forms of drug abuse to control among teens is prescription drug abuse. Prescription drugs, like stimulants prescribed for attention deficit hyperactivity disorder, can be abused for recreational purposes. 

Ever wonder why you can’t stop yourself from indulging in food? You might have a food addiction. There has never been a way of diagnosing or even treating food dependence — until recently.