Daily Bulletin

The Conversation

  • Written by The Conversation Contributor


Men are more likely to use cannabis because of external factors such as peer use, and women for internal factors such as anxiety.
Iriana Shiyan/Shutterstock

Cannabis is the most widely used illicit drug with more than 181 million consumers worldwide. It is often considered to be primarily a male problem: men make up three quarters of users, consume larger quantities, and are twice as likely to become dependent. Fewer women use cannabis, do so in smaller amounts, and start smoking later than men.

Women still experience significant harms from use: women escalate more rapidly from trying cannabis to addiction and are more likely to relapse following abstinence.

Studies have identified differences in male and female cannabis users that could inform how we treat cannabis addiction for individual users. But the evidence may not be adequate.

Why men and women use cannabis

First it’s important to note when discussing differences between large groups within society, such as sex differences, these are seen at the population level when we average across these two groups. There will be many individual men and women who do not fall into these categories.

Men and women generally have different motivations for using cannabis. Men, on average, are more strongly influenced by external factors, such as cannabis availability and peer use. Men also tend to have a strong cannabis-using social network.

In contrast, women are more likely to use as a result of internal factors such as coping with anxiety and relationship issues. Women are also more likely to combine cannabis with prescription drugs.

Among cannabis users who seek treatment, men consume higher quantities of alcohol and tobacco and have more criminal convictions and personality disorders.

Women experience more severe dependence and find it harder to quit. Women tend to have intimate partners who also use drugs, and have greater exposure to physical and sexual abuse.

Women are less likely to seek treatment, often because they fear losing custody of their children, because of difficulties in finding assistance for childcare and due to the lack of services for pregnant women.

Differences in processing cannabis

Chemicals in cannabis exert their effects by binding to particular receptors in the brain. Sex hormones affect the density and function of these receptors, causing sexdifferences in the way cannabis affects the brain.

In animal studies, large doses of cannabis over long periods caused long-lasting effects on emotion: male rats exhibited reduced motivation, while female rats showed depressive-like behaviours. Chronic cannabis administration altered brain areas controlling motivation in female rats and in areas involved in stress and memory in males.


Male lab rats given cannabis lost motivation, females became depressed.
Jean-Ettienne Minh-Duy/Flickr, CC BY

Unfortunately, we know little about whether cannabis affects cognition differently in men and women. Some studies show that chronic use is associated with lower memory in women; and poorer decision-making and reaction time in men; others show no sex effects.

Few studies have examined if cannabis affects the brain differently in men and women. Neuroimaging studies are expensive and involve small numbers of participants. Almost half of the studies have focused almost exclusively on men to minimise any differences between individuals that may undermine our certainty of the results, to the detriment of women who may respond to cannabis differently.

Preliminary evidence shows changes in brain areas that control inhibition in men, and emotion processing regions in women. But again, others find no sex differences.

The inconsistent evidence, the potential for false positives and publication bias (where studies showing positive results are more likely to be published), prevent scientists from drawing firm conclusions about how sex affects the way the brain processes cannabis.

Gender equity in cannabis research

When comparing men and women, it is difficult (if not impossible), to examine the pure effects of biological sex and gender (cultural and social factors associated with biological sex).

Animal studies are conducted in highly controlled environments that allow scientists to investigate sex effects, but are limited in their ability to tell us about human sex differences. In humans, we cannot fully disentangle sex from gender effects, as sex is systematically linked to many other psychological, social and cultural factors.

Men and women show different reasons for using cannabis, patterns of use and harms experienced. Unfortunately, we know very little about the role of sex on how cannabis affects the human brain and cognition, if at all.

Adrian Carter receives funding from the Australian Research Council and National Health and Medical Research Council.

Valentina Lorenzetti does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond the academic appointment above.

Authors: The Conversation Contributor

Read more http://theconversation.com/men-and-women-use-cannabis-for-different-reasons-46745

Image credit https://wendymccormick.com/

Writers Wanted

We vibrated earthworms to learn about safely connecting human brains to computers


The 2020 NZ election saw record vote volatility — what does that mean for the next Labour government?


Melburnians will soon be able to have 2 visitors per day. It's far riskier than an exclusive bubble


The Conversation


Prime Minister Interview with Kieran Gilbert, Sky News

KIERAN GILBERT: Kieran Gilbert here with you and the Prime Minister joins me. Prime Minister, thanks so much for your time.  PRIME MINISTER: G'day Kieran.  GILBERT: An assumption a vaccine is ...

Daily Bulletin - avatar Daily Bulletin

Did BLM Really Change the US Police Work?

The Black Lives Matter (BLM) movement has proven that the power of the state rests in the hands of the people it governs. Following the death of 46-year-old black American George Floyd in a case of ...

a Guest Writer - avatar a Guest Writer

Scott Morrison: the right man at the right time

Australia is not at war with another nation or ideology in August 2020 but the nation is in conflict. There are serious threats from China and there are many challenges flowing from the pandemic tha...

Greg Rogers - avatar Greg Rogers

Business News

Important Instagram marketing tips

Instagram marketing is one of the most important approaches for digital advertisers. If you want to promote products online, then Instagram along with Facebook is the perfect option. After Faceboo...

News Co - avatar News Co

Top 3 Accident Law Firms of Riverside County, CA

Do you live in Riverside County and faced an accident and now looking for a trusted Law firm to present your case? If yes, then you have come to the right place. The purpose of the article is to...

News Co - avatar News Co

3 Ways to Keep Your Business Safe with Roller Shutters

If you operate your business in a neighbourhood or city that is not known for being a safe environment, it is not surprising if you often worry about the safety of your business establishments o...

News Co - avatar News Co

News Co Media Group

Content & Technology Connecting Global Audiences

More Information - Less Opinion