Smoke marijuana long enough โ or spend time with those who do โ and youโre likely to experience a contact high.
But is what youโre feeling an actual, physical response to the smoke in the air, or is there something else at play?
In this article, the experts at budcargoย delve deep into the psychology and psychedelia of the cannabis contact high to find out if what youโre feeling is true.
The Legend Of The Contact High

Before we investigate whether or not contact high is a real thing, it behooves us to define the concept so weโre all on the same page.
A contact high (a.k.a. secondhand high) is the idea that exposure to exhaled ganja smoke โ be it from aย blunt,ย joint,ย spliff,ย bong, orย dab rigย โ causes a non-smoker to exhibit the same physical and psychological symptoms as a smoker.
Say, for example, that Molly is tokingย away on aย big fattie while Nathan plays Fortnight. Will Nathan start seeing double and wind up with theย munchiesย an hour later? And, more importantly, will Nathan fail his drug test tomorrow morning?
The legend of the contact high claims that itโs certainly possible. And weโve heard enough stories about a friendโs nieceโs cousin who wound up stoned out of her gourd because she was sitting in the same room (doing her homework, painting her nails, playing Fortnight) while her brother smoked anย eighthย ofย Sour Diesel.
But a legend, by definition, is a traditional story sometimes popularly regarded as historical but which, in actuality, is unauthenticated. And therein lies the rub.
Many of the stories weโve heard about the contact high are about your brotherโs girlfriendโs exchange studentโs third cousin twice removed who lives in Timbuktu. We donโt know for sure if theyโre true and have no way of verifying the claim.
So is the legendary contact high a real thing? Weโll give you the answer โ sort of โ in the next section.
Is Contact High A Real Thing?
The simple answer is yesโฆand no.
As youโll see in the next few sections, youย canย achieve a secondhand high โ or gift one to someone else โ if you make it a point to satisfy some very, very specific circumstances (which, by the by, take A LOT of work and arenโt really feasible for most people).
โBut wait,โ you say, โI caught a contact high once while sitting with my friends who were smoking a jay in the backyard. How did that happen?โ
Read on to find out.
Different Types Of Contact High
Psychological
A psychological secondhand high is a state of mind where a person in the presence ofย Mary Janeโs perfumeย starts toย thinkย theyโre actuallyย physiologically high.
Ever heard of the placebo effect? Itโs a beneficial effect produced by a placebo drug or treatment that cannot be attributed to the properties of the placebo itself and must, therefore, be due to the patientโsย beliefย in that treatment.
Hereโs how it works (in an extremely hypothetical situation).
Both Molly and Nathan break their pointer finger during a heated game of Rock Paper Scissors Lizard Spock. Naturally, then, they go to their mom for help.
Mom (who happens to be a brilliant chemistโฆor a witch) gives Molly a special potion that heals bone breaks in 30 minutes.
At the same time, she gives Nathan a kale smoothie that looks exactly the same as the bone-mending potion (donโt ask us why she does this โ Mollyโs mom has always been a riddle, wrapped in a mystery, inside an enigma).
Half an hour later, both Molly and Nathan have full use of their fingers again. How did this happen?
Nathanย believedย he was receiving the same bone-healing elixir as Molly, so his brain convinced his body to โfeel better.โ
Thatโs the placebo effect in a nutshell.
Now, obviously, no amount of belief in the kale smoothie you just drank is going to heal a bone break in 30 minutes. But the placebo effect can do some amazing things.
One of those amazing effects is making youย feel like youโre slightly trippy from a contact highย even though โ were you to be tested โ there would be zero physiological evidence.
That takes us back to the bystander who caught a contact high while sitting with friends who were smoking a jay in the backyard. How did that happen? The placebo effect.
It was all in her mind (and not the good kind of โin her mindโ like a roaring head high).
As youโll see later on in this article, most secondhand highs result from this psychological trick. Youโre not actually high; you just think you are.
Physiological
A physiological contact high is where the rubber meets the road โ or the cannabinoids meet the bloodstream โ so to speak.
When you inhale the cannabis smoke off aย burning blunt, your lungs absorbย someย of the cannabinoids therein. Note the emphasis on some.
Scientists donโt agree on the exact numbers, but when that same someone exhales their blunt smoke, anywhere from 50-70% of the cannabinoids may still remain floating around in the haze.
Theoretically, it would be possible for a bystander to achieve an actual physiological contact high if they inhaled enough of your exhaled smoke.
In this case, it would be just like they wereย tokingย along with you: their lungs would absorb the cannabinoids, which would travel via their bloodstream into their brain, dock with the CB1 and CB2 receptors there, and produce the trippy state that cannaenthusiastsย have come to prize.
A physiological secondhand high โ one that scientists can test through blood and urine analysis โ is extremely unlikely to occur under any normal circumstances.
As youโll see in the next section, it takes some serious effort to create a situation where a testable physiological contact high is possible.
A Definitive Contact High Test?
In 2015, researchers at Johns Hopkins University conducted what may be the most definitive contact high test ever.
The results illustrated the vast difference between a psychological contact high (the placebo effect) and a physiological contact high (where cannabinoids made it to the brain).
Part 1
In part one of the test, researchers put six cannabis smokers and six non-smokers in a small room for one hour. The researchers closed all the ventilation in the room.
That means they shut all the doors, closed the heating and cooling vents, sealed other sources of airflow, and generally made the room as still as possible (without completely cutting off the participantsโ air supply).
The researchers then gave each smoker 10ย high-potencyย joints (11.3% or higher) and challenged them to finish all 10 in the 60 minutes allotted.
At the end of the hour, researchers interviewed the nonsmokers, who reported feeling pleasant, a bit tired, and less alert. Researchers also tested the nonsmokersโ blood and urine and discovered detectable levels ofย THCย in both.
That means the nonsmokers were physiologically high โ they had inhaled cannabinoids into their bloodstream from the secondhand smoke in the air.
Contact high? Check.
Part 2
In part two of the test, researchers put 12 different participants (again, six cannabis smokers and six non-smokers) in the same small room for one hour and instructed the smokers to down 10 high-potency joints (presumably of the sameย strainย as in part one).
This time, the researchers left the doors and vents open to mimic a normal room.
At the end of the hour, researchers interviewed the nonsmokers, who reported that they didnโt feel all that different โ ย maybe a little hungry, but the study did end around lunch time.
Whatโs most telling is that researchers also tested the nonsmokersโ blood and urine and discovered NO detectable levels of THC in either.
Contact high? We think not (the researchers concluded the same thing).
Are You At Risk For A Contact High?
Going back to our example of Molly and Nathan from the first part of this article, if Molly is smoking a jay while Nathan plays Fortnight, is there any chance of Nathan getting high off the secondhand smoke?
No, thereโs pretty much zero chance that Nathan will catch a contact high. Same for the nonsmoker in the backyard.
And you certainly wonโt get the least little bit high just by smelling it at a concert or from someone walking by.
About the only situation we can come up with where you could catch a secondhand high would be hotboxing with your friends in a โ64 Impala โ or any smallish car, for that matter โ like Cheech and Chong inย the movieย Up In Smoke.
But, honestly, if youโre in that situation, you may as well just smoke the damn thing, too. Thatโs essentially what youโre doing anyway.
Can You Fail A Drug Test From A Contact High?
Yes, it is possible toย fail a drug testย from a contact high, but, again, you have to have been in one of those extraordinary circumstances we mentioned above for the cannabinoids in secondhand smoke to make it into your bloodstream.
Any other situation, youโre safe.
The Bottom Line
To paraphrase Blue Oyster Cult: donโt fear the contact high (ok, we know that was a stretch).
But, seriously, there are very few situations in which you might catch an actual physiological contact high, so just go out there and have fun.
If you do decide to skip the legend of the contact high altogether and partake of some firsthand smoke, allow us to recommend any of the fine strains fromย budcargo.ca
Donโt settle for the inferior. Get the best strains on the planet โ the Honest Marijuana strains โ and experience cannabis the way it was meant to be.
For more information on all things cannabis and to check out our 100-percent all-natural marijuana products, visitย budcargo.caย today.












You must be logged in to post a comment.