Nova Scotia Health Authority’s research team studying the effect of cannabis on teens
Nova Scotia Health Authority’s Mental Health Department’s research team is conducting a study which delves into the impacts of cannabis use on youth between the ages of 15 and 16-years old.
“The only way we could find out if we need harm reduction strategies is to actually go and meet with young people, do measurements of their cannabis use and measurements of their cognitive function,” said Candace Crocker, research scientist and one of the site leads.
The study stretches across different provinces including Ontario and Quebec. In Toronto, the study is being conducted on mice, and in Quebec, the other group is doing the study on 18-year-olds.
The research team in Nova Scotia is using MRI scans to determine potential psychotic-like experiences – something that Crocker said is common among teens but with the use of cannabis, can become worse in the future.
“The studies trying to figure out what we should do, are these associated, and if they are should we intervene,” said Crocker.
Psychotic-like experiences, Crocker said, are a normal part of development which eventually youth stop having as they grow into adults, however, a direct connection in the study might also be made for people who have a “bad trip” in response to using cannabis.
According to Crocker, Nova Scotia has the highest use of cannabis across Canada, with a significant number of studies showing that people are using or trying cannabis by the age of 15. So far a number of young people have volunteered to take part in the study.
“Every week we have young people reach out to participate in the study. As of now we are about half-way near our goal of the number of people we need for this,” explained Crocker.
One of the posters in Halifax, advertising for teens aged 15-16 for a study. (CTV/Hafsa Arif)She said while there already are studies showing that cannabis use can be a risk factor for development of psychosis, there is not enough data on prevention if people are to use the drug earlier in life.
“We’re working back into people who don’t have clinical contact yet and see if we can identify anyone that early and change someone’s trajectory,” added Crocker.
While the legal use of marijuana is 19 and over, the research ethics board approved this study, as long as it remains confidential.
“Everything that is said is completely confidential and once it’s done, the interviews, the names, and all the contact information are stripped off of everything,” explained Crocker.
The study is ongoing and has 48 volunteers already, the team is going to continue looking for volunteers to participate in this study for the next year.
The research is expected to conclude in a few years.
For more Nova Scotia news visit our dedicated provincial page.
CTVNews.ca Top Stories

Minnesota grocery store clerk dies after customer impales him with a golf club, police say
A Minneapolis store clerk died after a customer beat him and impaled him with a golf club, police said. The 66-year-old clerk was attacked Friday at the Oak Grove Grocery, a small neighborhood store in a residential area near downtown Minneapolis. A 44-year-old suspect is jailed on suspicion of murder.
B.C. Amber Alert cancelled, 2-month-old child found safe
Mounties in Surrey, B.C., say the two-month-old child who was the subject of an Amber Alert Saturday afternoon has been found safe.
Shohei Ohtani agrees to record $700 million, 10-year contract with Dodgers
Shohei Ohtani has opted to stay in southern California, and the Toronto Blue Jays have missed out on landing a generational talent.
6 dead, nearly 2 dozen injured after severe storms tear through central Tennessee
Severe storms that tore through central Tennessee killed six people Saturday and sent about two dozen to the hospital as homes and businesses were damaged in multiple cities.
A pregnant Texas woman asked a court for permission to get an abortion, despite a ban. What's next?
Kate Cox, a mother of two in Texas, became pregnant again in August but soon after learned devastating news: Her baby has a fatal condition and is likely to either be stillborn or die shortly after birth.
Every phone call is a goodbye, says Vancouver resident with family in Gaza
Omar Mansour says every phone call with his family in the Gaza Strip might be the last.
Mideast ministers in Ottawa to discuss Israel-Hamas war with Joly, Trudeau
A group of foreign ministers from the Palestinian Authority, Saudi Arabia and Turkiye are in Ottawa today for a quietly planned meeting with Foreign Affairs Minister Melanie Joly to discuss attempts to end the Israel-Hamas war.
Ibrahim Ali found guilty of killing 13-year-old girl in B.C.
A jury has found Ibrahim Ali guilty of killing a 13-year-old girl whose body was found in a Burnaby, B.C., park in 2017.
Nuclear fission may play key role in the creation of heavy elements when neutron stars collide: study
New scientific models are suggesting that nuclear fission may play a key role in the creation of heavy elements in the universe—which, if true, would be the first example of nuclear fission occurring in space.