Using Cannabis for Stress Relief? Study Says It Might Backfire

Sleep

by Amanda Capritto, August 21, 2026

Andrej Lisakov/Unsplash

Cannabis-Cortisol Connection: Frequent cannabis use may be linked to changes in the body’s natural stress response, according to new research from Oregon State University. The study found that people who frequently used cannabis had higher levels of cortisol — the hormone involved in regulating stress — when they first woke up than people who didn’t use cannabis.

The Study: Researchers focused on the cortisol awakening response (CAR), a normal surge in cortisol that occurs shortly after waking and helps prepare the body for the demands of the day. Interestingly, the size of that cortisol increase was similar between cannabis users and nonusers. The difference was that frequent users started the morning with more cortisol already circulating in their bodies, and then still experienced the increase.

Takeaway: Frequent cannabis use could disrupt the body’s natural stress response. Stress is also one of the most common reasons people report using cannabis, raising the possibility of a feedback loop in which cannabis use and stress regulation influence each other.

Keep in Mind: The study does not prove that cannabis causes elevated cortisol, nor that elevated cortisol causes people to use cannabis. More long-term research is needed to understand the relationship. However, the findings do offer a reason to look more closely at how frequent cannabis use may affect the body’s stress system.


Amanda Capritto is a writer and editor who covers health, fitness, outdoor adventure, and travel.…