Answer:
Certain drugs can change the structure and inner workings of the brain. With repeated use, they affect a person’s self-control and interfere with the ability to resist the urge to take the drug. Not being able to stop taking a drug even though you know it’s harmful is the hallmark of addiction.
A drug doesn’t have to be illegal to cause this effect. People can become addicted to alcohol, nicotine, or even prescription drugs when they use them in ways other than prescribed or use someone else’s prescription.
People are particularly vulnerable to using drugs when going through major life transitions. For adults, this might mean during a divorce or after losing a job. For children and teens, this can mean changing schools or other major upheavals in their lives.
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