In order to understand how drugs affect you, you must understand what drugs actually are.
In general drugs alter the chemical state of a person`s body and mind.
Drugs can be categorized in three groups.
Medicines: As drugs change the chemical state of your body and/or mind, when you feel sick you are given some (good) drugs by your doctor to balance the chemical imbalance in your body to get you better.
Legal addictive drugs: Alcohol and tobacco are harmful yet legal in north America. They can cause damage to your body and mind.
Illegal addictive drugs: There are many drugs which fall into this categories. You can learn about these categories in detail on drug categories page and types of drugs page. Read on to find out how these drugs affect.