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Get the facts about cannabis consumption, health effects and harm reduction.
Cannabis consumption can have a wide range of effects on physical and mental health. While further research is required to fully understand how cannabis affects the body and brain, the resources on this page will help you interpret what the clinical evidence to date says about the relationship between cannabis consumption and mental health, the developing brain, and pregnancy and breastfeeding, as well as how cannabis may be used for medical purposes.
If you or someone you know may be experiencing cannabis use disorder, you’ll find information here on the risks of frequent cannabis, use as well as resources to seek help.

While researchers are quite certain about how THC works, there’s still a lot to understand about how cannabis interacts with our bodies. Dr. Ruth A. Ross, PhD, lays out the basics.

Cannabis use exists on a spectrum, ranging from abstinence to cannabis use disorder (or addiction). If you choose to consume cannabis, it’s important to understand the spectrum and the risks at each point.

Dr. Jibran Khokhar explains how regular exposure to THC and other cannabinoids can have a negative impact on the growing brain.

While many people can use cannabis in a low-risk way, it’s essential to be aware of the short- and long-term effects that regular and/or frequent cannabis consumption can have on the brain.

There’s still a lot to uncover when it comes to the link between cannabis consumption and anxiety and depression, but Dr. Kira London-Nadeau is certain about one thing: It can be helpful to take notice of your mental state and how cannabis affects it.

Clinical research has established a complex connection between regular cannabis use and mental health outcomes. Here’s what researchers know so far.

Regular cannabis use during adolescence may negatively impact brain development. Learn how THC may affect the developing brain and the risks to adolescents.

Concerned about your cannabis consumption? Dr. Jibran Khokar lays out the criteria used to diagnose cannabis use disorder and addiction.

While the effects of cannabis use during pregnancy and breastfeeding are not yet completely understood, no amount of cannabis has been proven safe. Here’s what the current clinical evidence says about the risks.

Access to cannabis for medical purposes has been legal in Canada since 2001. Learn about the laws governing medical use of cannabis and what research says about its effectiveness as a treatment for certain health conditions.

Medical cannabis may not be right for everyone. Lindsay Lo, MPH, MSc, explains why it’s important to talk to your doctor about consuming it safely and effectively.

Cannabis education can be key to reducing the possible long- and short-term effects of cannabis consumption.

While it’s true that consuming cannabis has been associated with some benefits, there are also potential risks. Dr. Jibran Khokhar, PhD, breaks it all down.

Understand the symptoms of cannabinoid hyperemesis syndrome (CHS) and learn how you can help treat them.

Dr. Ruth A. Ross explains how frequent consumption of high-THC products can influence how your body responds to cannabis.

Time for a pulse check: Examine the latest research into how consuming cannabis, and particularly smoking it, may impact your heart and cardiac health.

Is smoking cannabis less harmful than smoking tobacco? How does smoking cannabis affect your lungs in comparison with vaping cannabis? Learn more about the effect of cannabis on the lungs.

Insomnia, depression, anxiety, mood swings: Find out why people are turning to cannabis to relieve their menopause symptoms and what the latest research can tell us. LEARN MORE

Ever wondered how consuming cannabis and cannabinoids such as THC and CBD affects your sleep? It’s not a simple answer. LEARN MORE
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