Show Summary Details
Page of

The mental health effects of cannabis use 

The mental health effects of cannabis use
Chapter:
The mental health effects of cannabis use
Author(s):

Wayne Hall

DOI:
10.1093/med/9780199696758.003.0068
Page of

PRINTED FROM OXFORD MEDICINE ONLINE (www.oxfordmedicine.com). © Oxford University Press, 2016. All Rights Reserved. Under the terms of the licence agreement, an individual user may print out a PDF of a single chapter of a title in Oxford Medicine Online for personal use (for details see Privacy Policy and Legal Notice).

date: 18 August 2019

The major adverse acute psychological effects of cannabis use are as follows: ♦ Anxiety, dysphoria, panic, and paranoia, especially in naive users ♦ Impairment of attention, memory, and psychomotor performance while intoxicated ♦ An increased risk of accident if an intoxicated person attempts to drive a vehicle. The major psychological effects of daily heavy cannabis use over many years remain contested but probably include the following: ♦ A cannabis-dependence syndrome ♦ Subtle forms of cognitive impairment that affect attention and memory and which persist while the user remains chronically intoxicated ♦ Impaired educational achievement in adolescents with a history of poor school performance, whose achievement may be limited by the cognitive impairments produced by chronic intoxication with cannabis ♦ Among those who initiate cannabis use in the early teens, a higher risk of progressing to heavy cannabis and other illicit drug use, and becoming dependent on cannabis.

Access to the complete content on Oxford Medicine Online requires a subscription or purchase. Public users are able to search the site and view the abstracts for each book and chapter without a subscription.

Please subscribe or login to access full text content.

If you have purchased a print title that contains an access token, please see the token for information about how to register your code.

For questions on access or troubleshooting, please check our FAQs, and if you can't find the answer there, please contact us.