Anonymous asked in HealthMental Health · 1 decade ago

Long-Term Effects of Marijuana On Memory?

Hi, I'm an honour roll student and I hardly ever study, so needless to say I have a great memory. I've been smoking marijuana occasionally for the past 2 years (about once every 2-3 weeks) and haven't noticed any changes in my memory. However, some of my friends complain that marijuana is affecting their memories and they only do it a little more than me (about once a week).

I've heard that marijuana only affects memory for 45 minutes, or the duration of the high. And all of this conflicting information is driving me crazy. Does anyone have solid proof and an answer to this?

If so, I would greatly appreciate it.

Thank you.


How much is "regularly"?

Have I been using it regularly, or occasionally, because I was under the impression that I was a pretty occasional user.

4 Answers

  • 1 decade ago
    Favorite Answer

    It really just depends on your body type.

    MJ can mess with certain people's short-term memories in some pretty hard-core doses. This has been proven through studies.

    What is "regular" use? Once again, depends on your body. Somebody I know who's a PhD in his 50's smokes daily and is short term memory loss that I know of. Others smoke on a lesser basis and act like burned out hippies; though usually these people have some history of recreational hard drug usage. Personally, I've smoked on a weekly basis for the last five years (since I was 17) and I have always had a bad memory even before toking up...I've yet to notice any drop in memory. Actually, my memory improves greatly while I'm high.

    Based on what you have said, I would bet you will have little memory loss over if weed helps you out in productive ways, continue it. If its just something to do (or if you're reeeeeally worried about memory loss), cut back or stop. There's no point in doing a drug if it doesn't help you out.

    As for your own usage? I would probably consider you a below-average regular user. It's not that bad...I know many who stay stoned all weekend! Most people who use weed tend to stop at a certain point in their lives after regular use, so if you're the norm you'll stop at some point.


  • Pooka
    Lv 4
    1 decade ago

    If you use it regularly it will effect your memory. It takes about 6 months to a year before you get your "faculties" back. I'm talking about a fairly subtle effect hear (well, depends on how much you do) but it is reversible. It just takes a while. You'll find during that time that you're just...a little slower at remembering things, making associations, etc...

    Robert Heinlein (one of the fathers of sci-fi) said that marijuana is a drug that, although it has no real bad side effects, it's a drug that's the death of creativity. A regular user in his opinion could never be a great writer of sci-fi/fiction.

    And if you use it regularly during formative years, it will effect how your think process/memory works for the rest of your life (that sounds scary, but it's true of most things you take/do during those years).

  • 1 decade ago

    It messes with short-term memory. I can be driving down a road I've driven down my whole life, and occasionally (especially at night when there is no distinguishable scenery) forget where I am for a minute. if you are too messed up, test-taking can get screwed up. If you have not been smoking that long or that much, it's not that big a deal. But when you do as much as I did, (years ago it was daily, all day long) you burn up the vitamins that support neural functions.

    Source(s): Training in body systems
  • 1 decade ago

    There are a lot of people from the 60's - 70's & 80's who have made a success of their lives but their short term memory is shot.

    Marijuana truly does kill brain cells.

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