# Daily Marijuana, Alcohol Use, and Sexual Intercourse in At-Risk Girls > **Author:** Benjamin Caplan, MD (ABFM Board Certified, MA Lic. #240562, NPI: 1962722637) > **Publisher:** CED Clinic (https://cedclinic.com) > **Canonical URL:** https://cedclinic.com/adolescent-cannabis-use-sexual-behavior-study/ > **Published:** 2020-06-02T13:47:27-04:00 | **Last Modified / Clinically Audited:** 2026-09-28T12:02:22-04:00 > **Clinical Summary:** Explore adolescent cannabis use and sexual behavior with insights from a Brown University study on marijuana, alcohol, and sexual activity among at-risk girls. --- **Daily co-occurrences of marijuana use, alcohol use, and sexual intercourse among at-risk, truant adolescent girls** In Summary A recent study conducted by Brown University found that adolescent female cannabis users were less likely than their peers to engage in sexual intercourse. It remains uncertain whether cannabis is reducing participants’ desire to engage in sexual intercourse or if there is a second common factor that wards them away from intercourse. Within the same population, it was found that the participants who consumed alcohol were far more likely to engage in sexual intercourse that day than controls or cannabis users. This knowledge may aid in the development of prevention programs, specifically for those consuming alcohol underage and then engaging in sexual intercourse, defined as a high-risk behavior in this study. [Adolescent cannabis use](https://cedclinic.com/adolescent-cannabis-use-and-anxiety-research/) is a hot topic of conversation as state governments continue to legalize medical and [recreational cannabis](https://cedclinic.com/tennessee-medical-cannabis-program-debate-2026/). At-home cultivators and those who maintain a large amount of cannabis at their homes need to ensure proper storage and restriction methods to ensure the safety of their children. Too little is known about the long-term effects of cannabis to allow adolescents to have unsupervised access to cannabis. There should also be more studies conducted addressing the effect of cannabis-based medications in adolescents so it can be deemed safe to give children for various disorders or if it affects neural development. The study is available for review or download here: [DOWNLOAD & REVIEW HERE](https://www.cedfoundation.com/wp-content/uploads/2020/03/Daily-co-occurrences-of-marijuana-use-alcohol-use-and-sexual-intercourse-among-at-risk-truant-adolescent-girls.pdf) View more studies like this in the CED Foundation Archive: [http://bit.ly/drcaplan](http://bit.ly/drcaplan) [https://cedclinic.com/contact/](https://cedclinic.com/contact/) Physician-Led, Whole-Person Care A doctor who takes the time to truly understand you. Personal care that starts with listening and is guided by experience and ingenuity. Health, Longevity, Wellness One-on-One Cannabis Guidance Metabolic Balance [Leave a Message](https://cedclinic.com/contact/) [Metabolic Care](https://cedclinic.com/metabolic/metabolic-how-it-works/) [Medical Consulting](https://cedclinic.com/book/) [Cannabis Care](https://cedclinic.com/book/) [https://cedclinic.com/contact/](https://cedclinic.com/contact/) RELATED READING AT CED CLINIC Continue exploring the evidence [Adolescent Cannabis and Mental Health in Teens: A Careful Reading of a Large New Study](https://cedclinic.com/adolescent-cannabis-psychiatric-outcomes-2026-digest/) This article explores the mental health risks associated with adolescent [cannabis use](https://cedclinic.com/cannabis-cardiovascular-health-insights-2024/), providing context for behavioral studies. [Read More](https://cedclinic.com/adolescent-cannabis-psychiatric-outcomes-2026-digest/) [Teens Who Use Cannabis Face Higher Risk Of Mental Disorders, Study Finds – Forbes](https://cedclinic.com/teen-cannabis-use-mental-health-risks-study/) A detailed report on the increased mental disorder risks among teens who use cannabis, complementing behavioral research findings. [Explore Article](https://cedclinic.com/teen-cannabis-use-mental-health-risks-study/) [Preventing alcohol and cannabis-impaired driving among adolescents: Effects of a web-intervention in a driver education program.](https://cedclinic.com/cannabis-impaired-driving-prevention-adolescents-driver-education/) This study highlights prevention efforts targeting adolescent [substance use](https://cedclinic.com/stroke-risk-assessment-substance-use/) and risky behaviors, including [impaired driving](https://cedclinic.com/cannabis-impairment-detection-driving-safety/). [Learn More](https://cedclinic.com/cannabis-impaired-driving-prevention-adolescents-driver-education/) Have thoughts on this? 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