Researchers at Oregon State University report that people who use cannabis frequently wake up with more cortisol circulating in their bodies than people who don't — a finding that complicates the very reason so many of us reach for it at the end of a hard day. According to the study, published in the journal Cannabis, this elevated starting point may hint at something quietly out of tune in the stress system we're trying to soothe.
The morning your body is already bracing
Cortisol is often called the "stress hormone," but it's better understood as our body's morning briefing system: it rises sharply in the first half-hour after we wake, priming us to meet the demands of the day. Researchers at OSU measured this rise — what's called the cortisol awakening response, or CAR — in 82 adults: 39 who had used cannabis at least three days a week for the past year, and 43 who hadn't.
Here's the nuance. The rise itself looked similar in both groups. What differed was the starting line. Frequent cannabis users began the morning with a higher baseline — more cortisol already moving through their system before that natural surge even kicked in. Within the frequent-use group, that higher waking cortisol also tracked with more self-reported consequences: reduced motivation, trouble at work or school, riskier behavior. The study's lead author, Anita Cservenka, suggests waking cortisol may serve as a neurobiological marker worth watching, though she's careful not to call it a verdict.
What this is — and what it isn't
It's worth pausing on what the study doesn't claim. It's cross-sectional, meaning it captures one moment rather than tracking people over years. We can't say cannabis causes the cortisol shift, nor that the shift drives heavier use. Earlier studies had found the morning rise itself to be blunted in frequent users; this one didn't replicate that finding, which Cservenka attributes to differences in analytic strategy. There's a lot of nuance here, and the science isn't settled.
What is settled is the broader backdrop. Among U.S. adults ages 19 to 30, past-month cannabis use climbed to 29 percent in 2024 from 18.5 percent a decade earlier, with more than 10 percent reporting use on twenty or more occasions in the past month — more than double the share we saw fifteen years ago. For a generation reaching for cannabis to manage stress at rates we've never documented, even early signals about how the stress system responds deserve a closer look.
A way to listen to your own baseline
If you're someone who uses cannabis regularly — especially to wind down — you don't need to abandon your routine to take this seriously. The most grounded thing we can do is get curious about our own morning state. For one week, try this: set an alarm thirty minutes before you actually need to get up. When it goes off, notice — without judging — how your body feels. Tense? Anxious? Foggy? Or genuinely rested? Jot a single word in your phone. You're not measuring cortisol; you're simply paying attention to the baseline you're starting from.
We live in a moment that asks sharper questions about what genuinely backs the things we depend on — whether that's a financial instrument like Tether's new XAUT gold-backed lending initiative with Ledn or the hormones that back our sense of being ready for the day. The instinct to look under the surface is the same one that lets us notice when our own systems are quietly out of tune.
Patterns reveal themselves faster than we expect. If your mornings often feel heavier than your evenings suggest they should, that's information worth bringing to a clinician you trust. The goal isn't to chase a number on a lab result; it's to notice the rhythm you've been living inside and decide, deliberately, whether it's still serving you. That kind of attention is something we can anchor to — regardless of what any single study ultimately concludes.