Cannabis effects on sleep, circadian rhythms, and light sensitivity

STUDY BASICS

Do you use cannabis? Are you interested in participating in a research study? You may be eligible for a research study to understand how cannabis use and discontinuation affect sleep, circadian rhythms, and sensitivity to light. Compensation is provided.

STUDY PURPOSE

Cannabis (marijuana) use and sleep are related; however, we still don’t understand sufficiently how cannabis affects sleep. This study will help us understand how cannabis use and discontinuation affect sleep, circadian rhythms, and sensitivity to light.

COULD THIS STUDY BE RIGHT FOR YOU?

• Between the ages of 18-25.
• Use cannabis regularly OR do not use cannabis

WHAT PARTICIPANTS CAN EXPECT

• A baseline + 2-4 overnight visits to complete questionnaires, tasks, and provide saliva samples
• Completing questionnaires on a smartphone; wearing an activity tracker; for 1-5 weeks
• Wearing a sleep headband for 6-12 days
• Discontinuing cannabis use for 4 weeks