Marijuana
Cannabis (marijuana, or weed) is one of the most commonly used recreational substances, and its legal status is changing rapidly. But what are the actual risks? The truth is, the risk isn't the same for everyone. It depends heavily on who you are, how you use it, and how often.
This page is an interactive tool to help you explore the science-based risks. Use the choices below to match your own situation, and the risk models will update to show you estimates based on data from major public health institutions.
Your Choices
To see your personalized risk estimates, please make a selection from each category below. The risk displays will appear once all the required factors have been chosen.
How do you typically use it?
How often do you use it?
What is your age group?
Your Estimated Risks
About the Data
All calculations are based on data from peer-reviewed studies and major public health reports. See the data page for all sources and calculation details.
Initially created by Gemini.