What are some problems that scientists have when they investigate the effects of drugs on the brain?
Scientists have difficulty investigating the effects of drugs on the brain because many drug abusers abuse more than one drug. Scientists must understand how each drug affects the brain and body because drugs taken in combination may have different effects. Also, many drug abusers have other medical conditions that make it difficult for scientists to determine what effects are due to the drug and what effects are due to the other medical problem. 2. If students want to learn more about how drugs affect other parts of the body, encourage them to do library or Internet searches for additional information. Because the focus of this unit is the brain, the curriculum supplement does not address how drugs act on other parts of the body. A great deal of information is available online. See the section Additional References for Teachers for some informative Web sites.
