Intoxication And Mental Impairment – Adverse Effects Of Marijuana

February 21, 2021

Most users cite mental impairment due to intoxication as the most important adverse effect of marijuana. Marijuana will seriously interfere with mental skills like memorization, recall, attentiveness, tracking ability, and coordination at complex tasks. Many users find it difficult to work, study, or perform difficult tasks while under its influence. Some users might build a tolerance to these effects or simply learn to compensate and adjust. Some people can go about their everyday lives with little or no trouble while still under the continual influence of cannabis. Of course, they could always be impaired in certain unnoticeable ways.

Some individuals argue that marijuana actually enhances their performance particularly at tasks requiring creativity, personal interaction, or rote, repetitive work where boredom is constant. These claims have yet to be supported by scientific studies, but it is still interesting that, at one time, mine and plantation owners in South America and Africa encouraged workers to take a cannabis break to boost morale and productivity!

Marijuana use has no evident effects on normal intellectual performance when you’re not under the influence. Some individuals have argued that heavy use is linked to a decline in “executive functioning,” or the ability to concentrate and focus your efforts on specific goals. Psychological tests have shown that heavy pot users are more easily distracted and less attentive to maintaining a course of action.

In any event, problems of this type are generally restricted to recreational abuse and won’t be relevant to medical users. Many patients find marijuana vital to their daily functioning, relieving them from the distractions of pain, discomfort, and debilitating suffering.

If you want to start growing, download my free marijuana grow bible and order some marijuana seeds. All top quality marijuana seeds are available in my marijuana seed shop. We ship seeds to the US, CA and many other countries. For any grow related question please visit the marijuana support page.


The founder of I Love Growing Marijuana, Robert Bergman, is a marijuana growing expert that enjoys sharing his knowledge with the world. He combines years of experience, ranging from small-scale grows to massive operations, with a passion for growing. His articles include tutorials on growing... [read more]


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  1. By Jefferey Burnside ,06 Mar 2014
    Your article on lighting is rather short to say the least. I have grown with flood lights with some success but for the power consumption it was too low of a yield. Today I prefer CFL's and would like to […]Read More
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  3. By First Time Use – ,10 Sep 2015
    […] marijuana is generally considered to be very safe, it still can have adverse effects. If taken in excess or abused, marijuana can be harmful just like any other […]
  4. By Anxiety – Medical Marijuana ,15 Sep 2015
    […] considerable caution must be taken when recommending marijuana to patients with serious mental disturbances. Studies in Sweden, New Zealand, the Netherlands, and Israel have found that youthful cannabis use […]
  5. By Attention Deficit Hyperactivity Disorder (ADHD) – Medical Marijuana ,15 Sep 2015
    […] abuse literature that shows that adolescent marijuana use is associated with a constellation of mental health issues, including ADD, depression, low self-esteem, lack of motivation, poor school performance, […]
  6. By Is Marijuana Safe To Use? ,16 Sep 2015
    […] course, just like any other drug, marijuana can still have adverse effects if it’s abused or misused. Also, some people just don’t like marijuana and can often find it […]
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      Hi David, Our customer service runs through email please send an email to [email protected] They can help you with any questions.
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