Featured Research

from universities, journals, and other organizations

Regular Cannabis May Increase Risk Of Stroke In Young Users

Date:
February 24, 2005
Source:
British Medical Journal
Summary:
Regular users of cannabis could be putting themselves at risk of stroke, while they are still young, indicates a case report, published in the Journal of Neurology Neurosurgery and Psychiatry.

Regular users of cannabis could be putting themselves at risk of stroke, while they are still young, indicates a case report, published in the Journal of Neurology Neurosurgery and Psychiatry.

Related Articles


Illicit drug use is known to be associated with an increased risk of stroke in young users, with heroin, cocaine, and speed (amphetamines) the most frequently implicated.

The patient was a 36 year old primary school teacher, who had been a sporadic user of cannabis in the past. He had no known risk factors for stroke, did not use other drugs, and only drank occasionally.

The first incident occurred after he had smoked a considerable amount of cannabis combined with three or four drinks at a party. He lost his ability to speak, which was followed, a few hours later, by convulsions.

A brain scan revealed one patch of bleeding and another blood clot, but no evidence of narrowed/furred up arteries. He was treated, and recovered.

A year later, after another bout of cannabis smoking, he again lost his ability to talk and experienced weakness on one side of his body (hemiparesis). A brain scan revealed a further small patch of bleeding as well as another blood clot, but in different areas from before.

The man refrained from using cannabis for 18 months, but then smoked a reasonable amount in one go, which he combined with three or four drinks. This was followed by an inability to recognise sounds, a condition known as auditory agnosia.

A brain scan revealed a patch of bleeding as well as the damage left by the previous bleeds.

The behavioural abnormalities and increased risk of schizophrenia, associated with frequent cannabis use, are well known, say the authors. But less well known, and no less important, are the cardiovascular effects.

These include rapid heart beat (tachycardia), excessively high or low blood pressure, and the decreased oxygen carrying capability of red blood cells. Cannabis also quadruples the risk of a heart attack within an hour of consumption.

They are at pains to point out that despite the widespread use of cannabis, there have only been 15 other cases of stroke, which have been linked to cannabis consumption.

But they conclude: "Cannabis is not as safe a drug as many believe…Future studies will be needed to clarify the role of cannabis as a stroke risk factor, as it could be underestimated."

An accompanying editorial, which discusses the possible mechanisms for the drug's impact on the cardiovascular system, suggests that recreational users of cannabis should be told more about the potential risks to their health.

"The therapeutic potential of cannabis and its derivatives should be rigorously evaluated and the benefit to risk ratio taken into account before authorising their medical use," writes Dr Dominique Deplanque, of the Department of Pharmacology at the University of Lille.


Story Source:

The above story is based on materials provided by British Medical Journal. Note: Materials may be edited for content and length.


Cite This Page:

British Medical Journal. "Regular Cannabis May Increase Risk Of Stroke In Young Users." ScienceDaily. ScienceDaily, 24 February 2005. <www.sciencedaily.com/releases/2005/02/050223162643.htm>.
British Medical Journal. (2005, February 24). Regular Cannabis May Increase Risk Of Stroke In Young Users. ScienceDaily. Retrieved March 28, 2015 from www.sciencedaily.com/releases/2005/02/050223162643.htm
British Medical Journal. "Regular Cannabis May Increase Risk Of Stroke In Young Users." ScienceDaily. www.sciencedaily.com/releases/2005/02/050223162643.htm (accessed March 28, 2015).

Share This


More From ScienceDaily



More Mind & Brain News

Saturday, March 28, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

AAA: Distracted Driving a Serious Teen Problem

AAA: Distracted Driving a Serious Teen Problem

AP (Mar. 25, 2015) While distracted driving is not a new problem for teens, new research from the AAA Foundation for Traffic Safety says it&apos;s much more serious than previously thought. (March 25) Video provided by AP
Powered by NewsLook.com
Smartphone Use Changing Our Brain and Thumb Interaction, Say Researchers

Smartphone Use Changing Our Brain and Thumb Interaction, Say Researchers

Reuters - Innovations Video Online (Mar. 25, 2015) European researchers say our smartphone use offers scientists an ideal testing ground for human brain plasticity. Dr Ako Ghosh&apos;s team discovered that the brains and thumbs of smartphone users interact differently from those who use old-fashioned handsets. Jim Drury went to meet him. Video provided by Reuters
Powered by NewsLook.com
Many Don't Know They Have Alzheimer's, But Their Doctors Do

Many Don't Know They Have Alzheimer's, But Their Doctors Do

Newsy (Mar. 24, 2015) According to a new study by the Alzheimer&apos;s Association, more than half of those who have the degenerative brain disease aren&apos;t told by their doctors. Video provided by Newsy
Powered by NewsLook.com
A Quick 45-Minute Nap Can Improve Your Memory

A Quick 45-Minute Nap Can Improve Your Memory

Newsy (Mar. 23, 2015) Researchers found those who napped for 45 minutes to an hour before being tested on information recalled it five times better than those who didn&apos;t. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Health & Medicine

Mind & Brain

Living & Well

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins