A viral survey claims 35% of Gen Z use substances before work. The number is everywhere on Instagram. It came from a rehab treatment marketing site, the math doesn’t match federal data, and the headlines buried what the survey actually measured. Here’s what the data really says.
You have probably seen the stat by now. “35% of Gen Z is getting high before work.” It’s been on Instagram, in Vice, in the New York Post, on every “9 to 5 but make it a side quest” meme that’s circulated for the past month.
The number comes from a single survey. It’s worth knowing where it came from, what it actually measured and why the math doesn’t survive five minutes of scrutiny.
Who’s behind the number
The survey was conducted by Drug Rehab USA, an addiction treatment marketing site. The methodology section discloses that the sample was 1,000 U.S. adults, recruited online, with a stratified design across age and gender. The author of the study is Andrew McKenna, deputy director of the National Council on Alcoholism and Drug Dependence/Westchester.
Both organizations have a direct financial and institutional stake in the data showing that substance use is widespread and worsening. Drug Rehab USA exists to connect people to addiction treatment programs. NCADD is an addiction advocacy nonprofit. This doesn’t make their data wrong. It does mean any survey they produce should be read the way you’d read a tobacco-industry-funded study about cigarettes: with attention to who’s writing the questions and what story the funder is positioned to tell.
The math problem
The federal government runs the National Survey on Drug Use and Health every year. It interviews roughly 70,000 people and is the gold-standard data source on American substance use. The most recent NSDUH, published by SAMHSA in July 2025, found that 35% of young adults ages 18 to 25 used cannabis at all in the past year. About 21% reported past-month use.
The math doesn’t add up
35%
Drug Rehab USA survey: Share of Gen Z that uses substances before work
35%
Federal NSDUH data: Share of 18-25 year olds that used cannabis at all in the past year
21%
Federal NSDUH data: Share of 18-25 year olds that used cannabis in the past month
Sources: Drug Rehab USA “Substance Use and Daily Life Study,” March 2026. SAMHSA National Survey on Drug Use and Health, 2024 (released July 2025).
Read those numbers next to each other for a second.
If the Drug Rehab USA survey were measuring cannabis specifically, it would be claiming that essentially every single Gen Z cannabis consumer in America gets high before work. Not before a concert. Not on weekends. Not after their shift. Specifically before work, every one of them. That’s not a statistic, it’s a math impossibility.
What rescues the survey from total absurdity is what got buried in the headlines.
What the headlines buried
The Drug Rehab USA survey didn’t ask Gen Z about cannabis specifically. It asked about “substances such as cannabis, alcohol, or prescription medications.” Three categories, lumped into one number, including legally prescribed anti-anxiety medications and sleep aids.
A graduate student taking their prescribed Adderall before clocking in at 8 a.m. is in the same statistical bucket as someone hitting a vape pen on the commute. The survey treats them as the same data point. The headlines treat the data point as “Gen Z is getting high.”
The other thing that got buried: Millennials actually scored higher than Gen Z in the same survey. 37% of Millennials reported substance use before work, compared to 35% of Gen Z. 62% of Millennials use alcohol to manage stress, compared to 61% of Gen Z. The data shows Millennials are slightly ahead of Gen Z on basically every metric the survey tracked. The “Gen Z is the most substance-dependent generation” framing is a headline grab, not a finding.
The Gen Z stress part is real
None of this means Gen Z isn’t stressed. The underlying conversation about generational anxiety is grounded in real data. The Deloitte 2024 Gen Z and Millennial Survey, which interviewed nearly 23,000 respondents across 44 countries, found that 40% of Gen Z report feeling stressed all or most of the time. That’s a serious finding from a serious methodology.
It’s also separate from the rehab marketing survey now circulating as fact.
Stress is real. The mental health crisis is real. Cannabis use among young adults has been documented for years by the federal government. None of those things require an addiction treatment company to manufacture data with a built-in panic angle.
How moral panics get made now
This is how the cycle works in 2026.
An organization with a financial stake in addiction treatment commissions a 1,000-person online survey. The survey lumps cannabis with alcohol and prescription medications and asks loaded questions about coping. The findings get a press release packaged for shareability. A few outlets pick it up without checking the methodology or comparing it against federal data. The numbers move from press release to news article to Instagram caption in about 72 hours. By the time anyone with a calculator notices the math doesn’t work, the panic has already done its job.
Gen Z is not getting high before work at the rates this survey claims. They might be more stressed than previous generations, more skeptical of pharmaceuticals, more open about cannabis. The federal data supports those broader trends. The “35% are pregaming the workday” framing is not data, it’s marketing.
Read the methodology. Check who funded it. Do the math.
