Health Effects

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.

Cannabis Made Clear - Health Effects en 2

Cannabis Consumption and Addiction

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.

READ MORE

Cannabis Made Clear - Health Effects en 3

Cannabis and Your 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.

LEARN MORE

Cannabis Made Clear - Health Effects en 4

Cannabis Use and Mental Health

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

GET THE FACTS

Cannabis Made Clear - Health Effects en 5

How Cannabis Affects the Developing Brain

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

READ MORE

Cannabis Made Clear - Health Effects en 6

Cannabis, Pregnancy and Breastfeeding

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.

GET THE FACTS

Cannabis Made Clear - Health Effects en 7

Cannabis for Medical Use

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.

LEARN MORE

Cannabis and Youth

Learn how to have open, honest and effective conversations about cannabis with youth

NEXT Cannabis and Youth