Misinformation is information that is false, inaccurate, or misleading according to the best available evidence at the time. It may be created in good faith or to sell something, as a joke, or to sway people toward certain opinions. It is usually spread by well-meaning people who do no know the claims are outdated, misleading, or false. Explore these tools to learn more about trustworthy and untrustworthy sources of health information.