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Marijuana is illegal in Canada. It contains a chemical called THC that affects your body. Like all drugs, it has a different effect on each person. The effects depend on things like
- how how much THC it has
- how it is taken
- how much and how often you’ve used it in the past
- what you expect to happen
- what’s happening around you at the time
- whether you are drinking alcohol or using other drugs
Because it affects the brain, marijuana and hashish can mess up your ability to think straight. While high on cannabis, you may have trouble remembering and concentrating on things. It can also interfere with your reaction time, co-ordination and ability to make judgments. Using cannabis can affect your performance at school, sports and other activities.
Regular users can develop tolerance, which means they need more of the drug to feel the same effects. Marijuana and hashish smoke are similar to tobacco smoke in some ways. Smoking marijuana or hashish can damage the lungs. It can also play a part in leaving the body vulnerable to diseases that interfere with breathing, such as bronchitis.
Heavy use of marijuana and hashish may also lead to difficulty remembering things and concentrating.