Letter by Parakh Regarding Article, “Cannabis-Related Stroke: Myth or Reality?” To the Editor: The review by Wolff et al on cannabis-related stroke was an interesting read. The authors have discussed the available evidence on cannabis-related stroke in detail and have also looked at the proposed mechanisms of the same. However, a few questions remain unanswered. It would have been interesting t...

Impacts of cannabis on driving: An analysis of current evidence with an emphasis on Canadian data. The purpose of this document is to provide an overview of available research and evidence on the potential impact of cannabis on road safety in Canada. Six areas of relevance to this issue are considered: 1) research on the effects of cannabis on the skills necessary for safe driving; 2) research ...

As of January 2016, 23 U.S. states and the District of Columbia have legalized medical or nonmedical cannabis, with more likely to follow. This dynamic policy context represents a substantial challenge for policy evaluation. Part I of this article provides a summary of state-level cannabis policy components across states and federal action regarding state-level policies. Part II presents a deta...

Current debate on Cannabis sativa in South Africa has centred on its positive and negative effects on health, as well as its decriminalisation. The contribution of cannabis (dagga) to the livelihoods of people who inhabit some of the poorest parts of the country has thus far been largely ignored. Using a case study of a village in Pondoland, this article argues that while cannabis makes a signi...

A major challenge in assessing the public health impact of legalizing cannabis use in Colorado and Washington State is the absence of any experience with legal cannabis markets. The Netherlands created a de facto legalized cannabis market for recreational use, but policy analysts disagree about how it has affected rates of cannabis use. Some US states have created de facto legal supply of canna...

BACKGROUND Health concerns around cannabis use have focused on the potential relationship with psychosis but the effect of cannabis smoking on respiratory health has received less attention. AIM To investigate the association between tobacco-only smoking compared with tobacco plus cannabis smoking and adverse outcomes in respiratory health and lung function. DESIGN AND SETTING The design wa...

Cannabis acutely increases schizotypy and chronic use is associated with elevated rates of psychosis. Creative individuals have higher levels of schizotypy, however links between cannabis use, schizotypy and creativity have not been investigated. We investigated the effects of cannabis smoked naturalistically on schizotypy and divergent thinking, a measure of creativity. One hundred and sixty c...

BACKGROUND Controversy remains as to whether cannabis acts as a causal risk factor for schizophrenia or other functional psychotic illnesses. AIMS To examine critically the evidence that cannabis causes psychosis using established criteria of causality. METHOD We identified five studies that included a well-defined sample drawn from population-based registers or cohorts and used prospective...

BACKGROUND Mobile technology is pervasive and widely used to obtain information about drugs such as cannabis, especially in a climate of rapidly changing cannabis policy; yet the content of available cannabis apps is largely unknown. Understanding the resources available to those searching for cannabis apps will clarify how this technology is being used to reflect and influence cannabis use beh...

conclusions the obtained results showed that hcv infection was an alarming problem among opiate users in the eastern part of turkey. it is suggested to rapidly diagnose the infected persons; thus preventive measures and appropriate control may limit further transmission of these infections. background hepatitis b, hepatitis c and hiv infections constitute serious healthcare problems worldwide. ...