IMPACT is a study aimed at reducing drug use and HIV risk among young gay and bisexual men. HIV, or Human Immunodeficiency Virus, affects the immune system. The study uses a method called behavioral intervention, which helps change habits and reduce risks. Participants will be involved in 10 sessions. These include talking about HIV risk reduction, understanding behavior changes, and learning about medications like PrEP (pre-exposure prophylaxis) and ART (antiretroviral therapy), which help prevent and treat HIV. The main goals are to see if this approach works and if it can be used in different places.

Eligibility: Participants should be males aged 16-24, have had unprotected sex while using stimulants like meth or cocaine recently, and agree to join the study. They need internet access and a private space for online sessions. Those unable to give consent, don't speak English, or are in other HIV studies can't join.

• 10 sessions in total, including about HIV risk and behavior change.
• Participants need a private space and internet for online sessions.
• Open to males 16-24 years old who have used stimulants and had unprotected sex recently.