This page was reviewed or revised on Tuesday, July 28, 2015 11:31 AM
A drug is any substance, other than food, that changes the way our mind and/or body works. Drugs can affect the way we think, feel and act. They can be legal such as alcohol, tobacco, caffeine, over-the-counter and prescription drugs, or illegal, like marijuana, crystal meth, or LSD.
People use alcohol and other drugs for many reasons:
Alcohol and other drugs can affect your judgment, vision, and coordination. The effects of any given drug vary from person-to-person and occasion-to-occasion, and depend on:
There are three (3) main categories of drugs:
Anyone can have substance use problems. Misuse of drugs, legal and illegal can have serious negative effects on your physical and mental health, impact relationships with family, friends, and neighbours, public safety, and may cause legal and economic problems. The good news is, it can be treated.