Cannabis use can impact brain development for people under 25.
That’s because, up until that point, your brain is still developing.
Using cannabis before the age of 25 could affect your attention, judgment, decision making and ability to learn.
The earlier in life you begin using cannabis, the higher your risk of serious health problems. Delaying cannabis use until later in life can reduce your risk.
But the fact is, all forms of cannabis use have health risks. The only way to completely avoid these risks is by choosing not to use cannabis.
If you do choose to use cannabis, here are some tips to reduce your risk of harm:
See Canada's Lower-Risk Cannabis Use Guidelines for more information.
Have conversations early that reflect your own values toward the use of drugs and other substances such as alcohol and cigarettes.
It’s important to talk about the risks that come with using cannabis before 25. Until then, the brain isn’t fully developed and cannabis use could impact memory, learning, attention, judgment and decision making.
A good approach is to understand the facts around substance use. Taking anything that changes the way you think, act and feel could have consequences on major life areas. This could include poor performance in school and dropping out of things you enjoy.
If you know someone under the age of 18 who is using or considering using cannabis, encourage them to think about where they do it, who they are with, why they are using, and what they are doing while using. Thinking about the possible risks that come with cannabis use and brainstorming ways to reduce these risks is always a good idea.
Remember this: Whether or not they express it, children and youth care about your opinion. It matters and can help with decision making.
If you are concerned about your own or someone else’s use of cannabis, alcohol, or another drug, please contact Health Link at 811 (1-866- 408-5465 for internet phone users) or the Addiction Helpline at 1-866-332-2322.
Cannabis became legal across Canada on October 17, 2018. Find out what it means for Albertans by visiting www.alberta.ca/cannabis.
Drugsafe.ca cannabis information is primarily dedicated to non-medical cannabis, but here are some links related to medical cannabis:
Alberta Health Services is working with school health partners to provide key cannabis resources for teachers, school administrators, and other educators.
Clarity on Cannabis Series
Éclaircissements sur le cannabis
For more information visit:
If you need help or are concerned with someone else’s substance use, call:
Health Link at 811 or
1-866-332-2322 the Addiction Helpline
(available 24 hours a day, seven days a week)