The ‘cognitive impairment theory’ proposes that cannabis causes cognitive decline. The hypothesis has gained some support from a 2012 study, but a recent paper with twin participants strongly argued against the theory. Both studies agree on the association between smoking and cognitive decline. Where they disagree is whether the relationship is causal or merely correlation. In this Dose of Science we take a close look at the question. 

Watch Drugreporter’s new video, marking the launch of the Consensus Statement from the International Network of People Who Use Drugs.

The Polish Drug Policy Network organised a conference on urban drug policies in Warsaw, where participants adopted a new declaration which will be promoted at the UN Commission on Narcotic Drugs by the Polish government. Read our report from the conference! 

Norway claims to have a progressive drug policy – but does it really? Our guest author from NORML Norway thinks otherwise.

The first room will be opened in Alta de Lisboa, in the parish of Lumiar.  

Drugreporter is now accepting entries to a poster contest about the alternatives of punitive drug policies.

Drug users demand governments to lift the ban on opiate substitution treatment and remove criminal sanctions of drug use – a speech delivered by Daria Mogucheva on behalf of the Eurasian Network of People Who Use Drugs at the civil society hearing in preparation of the UNGASS on drugs, to be held in April. 

A speech delivered by Olga Szubert on behalf of the Harm Reduction International at the ongoing civil society hearing at the UN Headquarters in New York. The hearing aims to update member states in preparations for the UN General Assembly Special Session on Drugs, to be held in April.

Danish MPs today debated a bill which would allow people to bring a friend with them into the drug consumption room, to assist them with injecting. We interviewed Nanna W. Gotfredsen, head of Gadejuristen (Danish Street Lawyers) about the significance of this reform.

ONEJ, a Slovenian cannabis reform NGO, has published a report on the criminalisation of cannabis users in Slovenia – a country which will soon see its first legal supervised injection room. The report also highlights the need to reform the country's drug laws!