Learn About Marijuana
Science-based information for the public


Adult Recreational Marijuana Consumers

Information on this page is intended to help adult consumers of marijuana understand and minimize their risks from use. Remember, you must be 21 or older to use marijuana legally in Washington State. (See also: Factsheets on Marijuana Edibles and Vaping.)

Printable Brochures

Recreational Marijuana for Adults: How Marijuana Users Can Minimize Risks

Available in three sizes:
8.5 x 11
  | 8.5 x 14 | 11 x 17

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Marijuana Use in Washington State: An Adult Consumer's Guide. What You Need to Know

From the WA State Liquor & Cannabis Board, updated 3/2015.

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Marijuana in Seattle, history, zoning, fines, and FAQs

Videos and E-Learning Modules

Learn About Marijuana E-Learning Modules: Five interactive online modules provide information about marijuana and our bodies, different products and methods of use, Washington state law, helping others quit or cut back, and more! (ADAI, UW 2017)

Beyond Brownies and Joints: Product Development and Advertising in the Legal Era: Presented by the Washington Association of Prevention Coalitions (WAPCo) and Prevention WINS, Dr. Beatriz Carlini, PhD, MPH of the University of Washington shares information about the fast transformation of marijuana products since legalization and how marketing strategies have been used to normalize use. (ADAI, UW 2017)

Know This About Cannabis
The Washington State Department of Health (DOH) created this interactive, user-friendly resource to answer questions from adult consumers of cannabis. Find information about Washington's marijuana laws, the impact of cannabis on your health, and safety issues to help reduce harm to yourself and others.

Frequently Asked Questions

Adults who don't have heart disease or psychiatric conditions, don't use marijuana while pregnant or when it's dangerous (before or while driving, e.g.), and only use marijuana occasionally probably aren't at risk of harm to their health.

What are cannabinoids?  Expand/Collapse

Why do I need to know about percentages of THC and CBD?  Expand/Collapse

Can getting high cause memory problems?  Expand/Collapse

Is driving while high a big deal?  Expand/Collapse

Can I become dependent on marijuana?  Expand/Collapse

Why should teens hold off on using marijuana?   Expand/Collapse

Can using marijuana affect my mental health?   Expand/Collapse

Do I need to worry about marijuana smoke damaging my lungs?  Expand/Collapse

Is it dangerous to use marijuana during pregnancy?  Expand/Collapse

Give me a quick overview of what I need to know.  Expand/Collapse