Cannabis Use Disorder Just Passed Alcohol in America — and Emergency Rooms Are Already Catching the Bill

Somewhere in an ER this week, a patient in her 30s is folded over a basin, vomiting for the fourth time in an hour, taking scalding-hot showers because it’s the only thing that quiets the nausea, and telling the doctor she doesn’t drink and doesn’t touch “hard drugs.” She just smokes. Every day, the way she has for a decade. Until fourteen months ago, there’s a real chance nobody charting her case had a specific way to write down what was actually happening to her.

That’s not a hypothetical scene. It’s the shape of two federal reports that landed two weeks apart in August 2026, and together they confirm something Rize has been saying for a while: weed is not the harmless off-ramp from “real” addiction that most of the country has decided it is.

Cannabis is now a bigger addiction problem in America than alcohol, and the healthcare system built to catch it is still catching up.

The numbers: weed passed booze

The headline data comes from a JAMA Psychiatry study that analyzed nationally representative U.S. survey data on nearly 187,000 adults collected between 2021 and 2024. Researchers were tracking cannabis use disorder (CUD) — the clinical term for when cannabis use stops being a choice and starts running the person: cravings, using more than you meant to, cutting back on work or people you care about to keep using, needing more to feel the same effect, using despite it visibly wrecking something in your life. It’s a checklist, not a moral judgment, and it comes straight out of the DSM-5.

In 2021, 7.3% of men and 4.5% of women met that bar. By 2024, per the same study, it was 9.3% of men and 5.6% of women. The “moderate-to-severe” cases — meaning someone isn’t just brushing up against a couple of those criteria but is meeting enough of them that the disorder is doing real damage — rose too: 3.1% to 4.1% in men, 1.7% to 2.5% in women. In raw people, that’s an estimated 15.3 million U.S. adults with CUD in 2021 climbing to 19.4 million by 2024.

Over that same window, alcohol use disorder went the other way — 28.8 million adults down to 27.1 million. Booze is still the larger number in raw terms, but the lines are crossing, not running parallel. One is climbing fast. The other is finally, slowly, dropping. And the sharpest cannabis increases weren’t in college kids — they were concentrated in middle-aged and older adults, the demographic least likely to picture themselves as the “cannabis problem.”

Why this snuck up on everyone

This is survey data — people self-reporting their own use to interviewers, the same NSDUH-style methodology the federal government has relied on for decades to estimate substance use nationally. That makes it a strong signal, not a lab test, and the researchers are careful about the difference: they connect the rise to climbing cannabis potency, expanding state legalization, and a steep drop in how risky people believe cannabis is, but they’re explicit that’s their interpretation of a correlation, not proof any one of those three is the cause. Several things moved at once during the same four years. Sorting out how much each one contributed is a different, harder study than this one.

What the trend line does say cleanly is the direction, and that direction is about you specifically if you smoke every day and have never once filed it under “habit that could become a disorder” — the same way your uncle never filed his nightly six-pack under that heading, until it was. It’s about you too if you’re a case manager or intake coordinator who runs a routine alcohol and opioid screen on every client and treats cannabis as an afterthought box, because “it’s just weed.” The study’s authors are blunt about the fix: routine clinical screening for cannabis use disorder specifically, and treatment access that isn’t years behind what already exists for alcohol and opioids. Right now, it’s nowhere close.

The ER data nobody was coding for

The second report is a CDC MMWR analysis of emergency department visits for cannabis hyperemesis syndrome, or CHS — a cycle of severe, repeated vomiting caused by heavy, frequent, long-term cannabis use that most people who develop it have never heard of, and that plenty of ER doctors have historically mistaken for a stomach virus or anxiety before sending patients home with anti-nausea drugs that don’t work, because the only treatment that actually works is stopping cannabis. From January 2023 through May 2026, the CDC counted 199,565 CHS-involved ED visits nationwide.

From January 2023 through May 2026, the CDC counted 199,565 CHS-involved ED visits nationwide.

Here’s the detail that makes this data credible instead of just alarming: a dedicated diagnosis code for CHS, R11.16, only went live on October 1, 2025. In the single month after it existed, the recorded rate of CHS-involved visits jumped from 3.35 per 10,000 ED visits in September to 11.26 per 10,000 in October — more than tripling in thirty days. The CDC is explicit that this is almost certainly not a real overnight tripling of the illness itself; it’s ER doctors and coders finally having a box to check for something they’d likely been seeing and misnaming for years. The jump showed up hardest in people age 15 to 24 and in women. That gap — between the illness existing and the healthcare system having language for it — is itself the story: how invisible cannabis-caused harm has been inside American medicine, right up until last October.

Put the two reports side by side and this isn’t a story about cannabis suddenly getting more dangerous. It’s a story about cannabis already being this dangerous, while the country’s diagnostic codes, treatment infrastructure, and public sense of what’s risky all lagged years behind the plant now sitting on dispensary shelves in half the states. The JAMA study just put a number on that gap. The CDC diagnosis code just gave it a name. Neither one required the problem to get worse this year — they just required someone to finally start counting it.