cannabis use, and exercise. In her HIV and STD prevention work, she has examined the influence of a situational variable—alcohol use during sexual activity—as a factor impacting condom use among at-risk young people. In an initial study, Bryan and her colleagues found that alcohol use was unrelated to condom use in males but was strongly and negatively associated with condom use among females. Bryan was interested in testing a higher risk population and decided to focus on criminally involved adolescents. In comparison to other adolescents in the general population, adolescents involved with the criminal justice system tend to be younger at the age of first sexual intercourse, and have more sex partners, lower rates of condom use, and higher rates of unintended pregnancy, HIV, and STDs. In this high-risk population, Bryan and her colleagues failed to find evidence that alcohol use influenced adolescents' intentions, attitudes, and behaviors around condom use. Another line of work has explored effects of cannabis on motor functions. Legalization of cannabis has led to increased rates of driving under the influence. Although numerous studies indicate that cannabis impairs psychomotor and neurocognitive functions that can affect driving ability, determination of driving risk is complicated by the extent to which cannabis users develop tolerance to THC. In her study, Bryan and her colleagues used a mobile app to assess the psychomotor and cognitive functioning of frequent cannabis users immediately and one hour after engaging in cannabis use. They found clear evidence of psychomotor impairments immediately after cannabis use, but found that the impairments decreased significantly one hour after use. Bryan's research on cannabis is not easily obtainable because Marijuana remains fully illegal at the federal level, and strict federal access policies tie the hands of researchers Bryan hopes to start filling the research gap on the topic as it gains popularity. In order for Bryan to get much needed data on the topic, she is not able to be present during participants consumption. The only way she can study effects is by using a mobile lab and asking participants to come outside to the van for tests of how its active ingredients, called cannabinoids, have affected them. The van is helping to facilitate several studies; among them are the effects of various cannabis products on anxiety, pain, inflammation, sleep, health and mood. Bryan hopes to study cannabis and metabolism, including its effects on the body's response to insulin.