Cannabis 'more harmful to under-18s than adults' - video

New research covering nearly four decades shows that adolescents who regularly use cannabis are at risk of permanent damage to their intelligence, attention span and memory. The long-term study produced the first convincing evidence that cannabis has a different and more damaging effect on young brains than on those of adults

The GuardianTramp

Related Content

Article image
Cannabis more damaging to under-18s, study suggests

First convincing evidence that cannabis has a different effect on young brains than on those of adults

Sarah Boseley, health editor

27, Aug, 2012 @7:00 PM

Article image
Cannabis really can trigger paranoia
Daniel and Jason Freeman: The largest ever study of the effects of the main psychoactive component of cannabis suggests that it can cause paranoia in vulnerable individuals

Daniel Freeman and Jason Freeman

16, Jul, 2014 @6:00 AM

Article image
Cannabis and memory loss: dude, where's my CBD? | Dana Smith
Dana Smith: Legalisation presents an opportunity to promote cannabis rich in a chemical that protects against its negative effects

Dana Smith

17, Jan, 2014 @7:00 AM

Article image
Mice benefit from research into cannabis. Why not us? | Simon Jenkins
Instead of forging ahead with research on the benefits of cannabis, the UK criminalises millions

Simon Jenkins

11, May, 2017 @6:00 AM

Article image
Cannabis reduces IQ … and appreciation of context | Dean Burnett

Dean Burnett: Cannabis may appear to lower IQ but other explanations should be acknowledged

Dean Burnett

29, Aug, 2012 @1:02 PM

Manipulating memory to treat addiction | Mo Costandi | Neurophilosophy blog

Mo Costandi: A behavioural procedure that alters memory effectively prevents the cravings of heroin addicts

Mo Costandi

12, Apr, 2012 @6:18 PM

Article image
Cannabis 'munchies' explained by new research
Scientists have shown the urge to eat after smoking is caused by cannabinoids hijacking brain cells that normally suppress appetite

Hannah Devlin, science correspondent

18, Feb, 2015 @5:46 PM

Article image
Study looks at cannabis ingredient's ability to help children's tumours
UK research into cannabidiol (CBD) comes after surge in parents administering it to children without medical advice

Sarah Marsh

02, May, 2017 @5:16 PM

Article image
Cannabis psychosis admissions rose in England after drug reclassified to Class B | Suzi Gage

Suzi Gage: Study suggests home secretary's attempt to reduce cannabis-induced psychosis by upgrading the drug to Class B failed

Suzi Gage

18, Jul, 2013 @4:13 PM

Article image
Ireland to legalise cannabis for specific medical conditions
Patients with multiple sclerosis, severe epilepsy, or undergoing chemotherapy could be given drug despite safety fears

Henry McDonald Ireland correspondent

10, Feb, 2017 @2:20 PM