Legal marijuana in the US may be less potent than packaging claims
12 April 2023
Tests of marijuana sold legally in Colorado found that most products contained significantly less THC, the main psychoactive component, than was listed on the packaging
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Premium
People who use cannabis may experience more pain after surgery
23 October 2022
A study of nearly 35,000 people who underwent various surgeries found that those who used cannabis in the month prior reported higher pain levels after their procedures
Medical cannabis eases chronic pain – but only if it has very high THC
6 June 2022
Most prescribed cannabis products for chronic pain cause side effects like dizziness, but a new review has found that only those with very high THC, not CBD, actually provide pain relief
Legalised cannabis in Canada and US hasn’t killed illegal market
24 May 2022
Even when cannabis is legalised, some users still prefer to stick with their usual illegal sources, which can be cheaper and easier to access
Parents' second-hand marijuana smoke may cause colds in children
29 July 2021
Children whose parents smoke or vape cannabis appear to get slightly more respiratory infections, such as colds and flu, than those whose parents just smoke tobacco or don't smoke at all
The science of cannabis: Can it really help our mental health?
2 December 2019
Cannabis was long thought to harm mental health but is now prescribed as a treatment. Psychopharmacologist Val Curran looks at the evidence
