Cannabis that was vaped caused more negative drug effects and cognitive impairment in a study led by Johns Hopkins Behavioral Pharmacology Research Unit in Baltimore

Vaping cannabis has more of an effect on users than smoking the drug, a new study has found.

Cannabis that was vaped caused more negative drug effects and cognitive impairment.

Over six sessions lasting 8.5 hours long, 17 participants were asked to consume cannabis, in research led by Johns Hopkins Behavioral Pharmacology Research Unit in Baltimore.

Participants were asked to smoke or vape either 0 milligrams, 10mg or 25mg of THC, the psychoactive component found in cannabis.

“Cannabis that was vaped caused more negative drug effects and cognitive impairment in a study led by Johns Hopkins Behavioral Pharmacology Research Unit in Baltimore”

They were then asked to fill out a questionnaire in the dark, to avoid bias, and to also undergo physical and cognitive tests during each high.

Those involved in the study had their heart rate and blood pressure measured 10 times in the 8 hour sessions and were asked to complete tasks on a computer, such as solving simple equations.

Vaped cannabis in both high and low doses resulted in twice as many mistakes on tests and an increase in negative drug effects, including a dry mouth, paranoia, itchy eyes and higher heart rate.

And the effects of vaping were much more potent at every dosage than smoking.

The researchers wrote in their study published in the journal JAMA Network Open: ‘Vaporized cannabis produced significantly greater subjective drug effects, cognitive and psychomotor impairment, and higher than the same doses of smoked cannabis’.