10 Aug Frequent cannabis users show higher cortisol levels at awakening compared to controls
Cannabis and CBD Product Notice: Cannabis and CBD products are not FDA-monitored or approved for the treatment of anxiety, depression, or any other mental health condition and are not legal in all locations. Effects vary significantly between individuals. Do not use if you are pregnant, nursing, or may become pregnant. Keep out of reach of children. Children and pets should not be exposed to these products. Cannabis and CBD products may interact with alcohol and other drugs including prescription medications. Always consult your physician or qualified healthcare provider before using any cannabinoid product, especially if you have an existing health condition or take other medications.
MedicalResearch.com Interview with:
Anita Cservenka, PhD
Associate Professor; Director, Substance Use & Neurocognition Lab
School of Psychological Science, Oregon State University, Corvallis, OR
Dr. Cservenka, PhD[/caption]
MedicalResearch.com: What is the background for this study? What are the main findings?
Dr. Cservenka: There had been limited research on whether frequent cannabis use is associated with changes in individuals' diurnal stress activity, which can be measured by examining the cortisol awakening response. However, some previous studies had shown that the typical rise of cortisol in the morning, which is thought to be a marker of our body's preparation for managing the stressors of the day, may be blunted among individuals with alcohol use disorder. A recent study by Glodosky et al., 2026, also suggested this may be the case among those with chronic cannabis use, so we attempted to replicate those findings. Although we did not find group differences in the cortisol awakening response (the difference in cortisol 30 minutes post-awakening and at the time of awakening) between individuals who engaged in frequent cannabis use relative to controls, we did find that cannabis use may be related to higher levels of cortisol at the time of awakening and this was significantly related to cannabis use consequences.
Dr. Giebultowicz[/caption]
Dr. Jaga Giebultowicz
Professor Emeritus,
Department of Integrative Biology
Oregon State University
Corvallis, OR 97331
MedicalResearch.com: What is the background for this study? Where is blue light commonly found?
Response: Our study in short-lived model organism Drosophila revealed that cumulative, long-term exposure to blue light impacts brain function, accelerates the aging process and significantly shortens lifespan compared to flies maintained in constant darkness or in white light with blue wavelengths blocked.
Blue light is predominantly produced by the light-emitting diodes (LEDs); it appears white due to the addition of yellow fluorescent powder which is activated by blue light. LEDs has become a main source of display screens (phones, laptops, desktops, TV), and ambient lights. Indeed, humans have become awash in LEDs for most of their waking hours.
Dr. Dermody[/caption]
Dr. Sarah Dermody, PhD
Assistant Professor
School of Psychological Science
Oregon State University
Corvallis Oregon
MedicalResearch.com: What is the background for this study? What are the main findings?
Response: Drinking alcohol is a risk factor for sustained smoking. In a sample of daily cigarette smokers receiving treatment for alcohol use disorder, we examined if reductions in drinking corresponded with reductions in nicotine metabolism as indexed by the nicotine metabolite ratio. The nicotine metabolite ratio is important because it is associated with smoking level and lapses. We found that for men, alcohol use and the nicotine metabolite ratio reduced significantly; however, for women, neither drinking nor nicotine metabolite ratio changed.