The study found that problems with cognitive abilities such as decision-making, attention span and academic performance at school increased alongside cannabis use.
Cannabis advocates like to believe that the drug is a safe alternative to alcohol - but a new study found cannabis is actually worse for teenage brains.
The research team recruited almost 4,000 teenagers from over thirty different Canadian schools to track them for a period of four years. "Their brains are still growing, but cannabis intervenes in this process, so teens should delay cannabis use as much as possible", he said.
Adolescents gave details of their drinking habits, cannabis and other substances, and they were subjected to cognitive tests each year. The Ste-Justine Hospital-Université de Montreal study discovered damage to primary cognitive functions that have been more intense than the ones triggered by alcohol use.
Overall, teens who used cannabis and drank alcohol were more likely to fare poorly on all domains of the cognitive test.
In total, 28 per cent of the teenagers admitted to some kind of cannabis use, compared with 75 per cent who reported drinking alcohol at least occasionally.
It was noted an increase in marijuana use, unlike alcohol consumption, showed "additional concurrent and lagged effects" on functions like memory.
The study showed that the use of alcohol and cannabis during adolescence was associated with generally poorer performance in all cognitive areas.
"We think it's important because it is linked to how someone functions in life", said lead author Patricia Conrad, a professor of psychiatry at Montreal.
"Of particular concern was the finding that cannabis use was associated with lasting effects on a measure of inhibitory control, which is a risk factor for other addictive behaviours, and might explain why early-onset cannabis use is a risk factor for other addictions", added Morin.
In a context where policies and attitudes regarding substance use are being reconsidered, this research highlights the importance of protecting youth from the adverse effects of consumption through greater investment in drug-prevention programmes.
Cannabis can create addiction (though smaller than "hard" drugs), as well as increase the risk of psychoses, especially in puberty.
"She gave her speech and Theresa May managed to get through her entire speech without saying the word Chequers once". A party that believes in the good that government can do but knows that government will never have all the answers.
The anomalies were intriguing enough to warrant 40 hours of observation time using the Hubble Space Telescope . The planet goes around the yellow parent star every 287 days at the same distance as the Earth orbits the sun.
Mayweather and McGregor have been known to be a pair of trash-talking opponents even before their fight previous year . But lucky for him, former opponent Floyd Mayweather Jr.is looking to help get his mind and body right.
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Democrats meanwhile condemned the investigation - the parameters of which were reportedly set by the White House - as preordained. Kavanaugh's likely confirmation will also mean Republican-appointed judges maintain their 5-4 majority on the Supreme Court .
Being overweight can increase the risk of many different cancers, including breast cancer , especially after menopause. Money from the fund helps cover cost for women to get diagnostic procedures they may not otherwise be able to afford.
Brooklyn Nine-Nine was briefly canceled by Fox after its first five seasons when it was quickly picked up by NBC the next day . For the start of the fifth season, Gina was absent on maternity leave, which coincided with Peretti's real-life pregnancy.
Khabib Nurmagomedov has shown in his Instagram account the collective with all members of the sports club where he trains. The lightweight champion is undefeated and has dominated each of his opponents on the way to an incredible 26-0 record.
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U.S. vice-president Mike Pence has called on Google to end its censored Chinese Search engine the "Dragonfly" project. He was to accuse Beijing of convincing three Latin American nations to sever ties with Taiwan and recognize China.
Google Assistant finally lets you book Uber, Lyft rides
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Typhoon Kong-rey heads toward Japan and South Korea
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'The Situation' Is Going to Prison
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PMLN chief Shehbaz Sharif arrested in water scam
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Man uses $100,000 meteorite as doorstop for decades
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