[HN Gopher] No evidence cannabis helps anxiety, depression, or PTSD
       ___________________________________________________________________
        
       No evidence cannabis helps anxiety, depression, or PTSD
        
       Author : nothrowaways
       Score  : 106 points
       Date   : 2026-03-21 20:05 UTC (2 hours ago)
        
 (HTM) web link (www.sciencedaily.com)
 (TXT) w3m dump (www.sciencedaily.com)
        
       | int32_64 wrote:
       | It's good to see science confirm what anybody who has
       | accidentally taken too large of edibles dose understands.
        
         | embedding-shape wrote:
         | Huh? Like Paracetamol doesn't work because if you take too much
         | you die? Are you confusing "overdosing" with something else
         | here maybe?
        
         | entropie wrote:
         | Ive overdosed edibles multiple times and I dont know what you
         | talk about.
        
           | billfor wrote:
           | Well how do you know if you overdosed? What else happens
           | besides anxiety and paranoia? Some of the reaction may be
           | genetic, but I think many people have a negative reaction to
           | taking mass quantities of cannabis. I don't know if you want
           | to take a poll here but it's pretty common...
        
       | erelong wrote:
       | Still ok with it being legal but yeah that doesn't mean it's
       | beneficial
        
         | lokar wrote:
         | Yep. Of course alcohol is depressive.
        
           | LPisGood wrote:
           | "Depressant" refers to its impacts on nervous system
           | activity, not that it causes feelings of depression.
        
             | adi_kurian wrote:
             | Worth noting that it very much can cause feelings of
             | depression, also.
        
             | malfist wrote:
             | Tell that to my depression. Back before I got sober days
             | after alcohol were certainly some of my lowest mood days.
             | Its well known that alcohol impares next day production of
             | neurotransmitters responsible for balancing moods.
             | 
             | Now I've been sober for 7 years and my depression has been
             | treated, but I certainly remember those days
        
               | illusive4080 wrote:
               | In alcohol's case I think you're masking the depression
               | by drinking which makes you even more depressed when you
               | aren't drinking.
        
       | MagicMoonlight wrote:
       | Obviously. It was always just a scam so that people could do
       | drugs.
       | 
       | Anyone who knows a weed addict knows that they end up anxious and
       | stupid. It actually seems to reduce their IQ while they're using
       | it regularly.
        
         | post-it wrote:
         | How does your "anyone knows" control for false negatives? i.e.
         | how can you be certain that the people you met who _aren 't_
         | "anxious and stupid" aren't also weed addicts?
        
         | lokar wrote:
         | What's wrong with people choosing to do drugs if it has no
         | major adverse effects on other people?
        
       | bitxbitxbitcoin wrote:
       | The studies cited by this metastudy all suffer from the same
       | issue: They aren't studying the cannabis plant at all and even if
       | they are, it's not in the chemovars (chemical makeups) that real
       | consumers are actually consuming - due to cannabis sourcing
       | issues stemming from cannabis's continued illegality.
       | 
       | For randomized controlled trials, even in "legal" states,
       | university scientists can't just walk into a dispensary and buy
       | cannabis to then administer to test subjects.
       | 
       | That's Post-Prohibition for you.
       | 
       | As far as I can tell, most (EDITED FROM ALL) of the studies
       | utilize isolates - and not necessarily in conjunction.
       | 
       | For instance, none of the 6 anxiety studies included in this
       | metastudy used THC and CBD together.
       | 
       | The headline could read instead: No evidence cannabinoid isolates
       | help anxiety, depression, or PTSD.
       | 
       | Cannabis advocates are the first to mention the entourage effect.
       | Cannabis prohibitionists on the other hand, love nothing more
       | than to cite incomplete science.
        
         | Aurornis wrote:
         | Using quantified isolates is the correct way to do a controlled
         | study. Dosing is important.
         | 
         | Claims that you need a special combination of exactly the right
         | strains are just a way to move the goalposts forever. They
         | could study 10 different strains in controlled trials and the
         | same people would show up to dismiss this study because they
         | weren't using some random strain that has some perfect
         | combination of entourage effect.
         | 
         | Using actual plants and smoking would also introduce another
         | major variable, with further claims that the strains they were
         | giving patients were too weak or they were smoking it wrong.
         | 
         | EDIT: I don't have time to read every single citation included,
         | but the claim above that they were all THC or CBD isolates does
         | not appear correct. One randomly selected citation:
         | 
         | > The short-term impact of 3 smoked cannabis preparations
         | versus placebo on PTSD symptoms: a randomized cross-over
         | clinical trial
         | 
         | So the claim above that they didn't investigate smoked cannabis
         | or "entourage effect" is false.
        
           | lokar wrote:
           | I think that's a bit of a straw man.
           | 
           | You could study one combination that is broadly
           | representative and is much much closer than the isolate.
        
             | Aurornis wrote:
             | They included studies which looked at multiple different
             | smoked cannabis varieties.
             | 
             | The claim above about only looking at isolates was false.
        
           | tannedNerd wrote:
           | Way to completely misunderstand and try in an underhanded way
           | to the dismiss entourage effect.
           | 
           | It's not smoking 10 strains in a row it's the fact that you
           | need CBD THC and all the terpenes to get the effects. So the
           | current growing trend of just getting the THC number higher
           | tends to result in plants that don't actually give people the
           | full spectrum of effects, beneficial or not.
           | 
           | So the correct way to do this would be a full spectrum
           | isolate, which again you coincidently forgot to mention I'm
           | sure.
        
             | Aurornis wrote:
             | > It's not smoking 10 strains in a row
             | 
             | I never said it was. I was saying you could run 10
             | different studies on 10 different strains with 10 different
             | "entourage effect" profiles and even if all of them were
             | negative, they would be dismissed as not having precisely
             | the right entourage effect.
             | 
             | If there are anti-depressant compounds in cannabis plants
             | then they can be extracted and isolated, too.
             | 
             | > So the correct way to do this would be a full spectrum
             | isolate, which again you coincidently forgot to mention I'm
             | sure.
             | 
             | Of course, the correct formulation is something other than
             | what was tested, right? And if they tested a full spectrum
             | isolate with negative results, we should assume that it
             | just wasn't the right blend of terpenes and therefore that
             | study should be dismissed too? Repeat ad nauseum?
        
           | bitxbitxbitcoin wrote:
           | That's a great example study to highlight what I really mean
           | by entourage effect. I've edited my post to emphasize most
           | not all - i only looked at the 6 anxiety studies as that's
           | what I have the most experience with - as well as the
           | included table which highlighted that the vast majority of
           | studies included in this metastudy only looked at THC.
           | 
           | That particular study did look at High THC low CBD, mid THC
           | mid CBD, and high CBD low THC. There's no information on the
           | terpene profile of the smoked cannabis preparations, though,
           | and that is a confounding variable in the entourage effect
           | that potentially defeats the part of the entourage effect
           | they did test. Additionally, a quick look at the cannabinoid
           | %s in those smoked preparations rehighlights my point that
           | these are not inclusive of all the chemical compositions that
           | the cannabis plant could present itself in.
           | 
           | I still stand by my point and hope the clarifications bring
           | the conversation back on track to the fact I was highlighting
           | which is simply that this is a metastudy built off of studies
           | that were conducted with restrictions on experimental design
           | that few observers fully understand the research implications
           | of.
        
           | bitxbitxbitcoin wrote:
           | > Using quantified isolates is the correct way to do a
           | controlled study. Dosing is important.
           | 
           | That's the correct way to do a controlled study on the
           | isolate - not the plant that it comes from.
           | 
           | It's clear to me at least that the authors of the metastudy
           | conflate the two and many shades between them for purposes of
           | this study.
        
         | pipeline_peak wrote:
         | >The headline could read instead: No evidence cannabinoid
         | isolates help anxiety, depression, or PTSD.
         | 
         | There's no evidence that what they tested with was pure THC
         | isolates. If they're using cannabis in plant form, even if it
         | was bred for higher thc content, there is still cbd.
        
           | bitxbitxbitcoin wrote:
           | Those that are interested to click through should and see the
           | studies cited by this metastudy and whether they used whole
           | plant cannabis extracts, cannabis isolates, or even non
           | cannabis derived isolates.
           | 
           | tldr; "If they're using cannabis in plant form" is a very,
           | very high bar for the current state of cannabis (really
           | cannabinoid) research.
        
         | post-it wrote:
         | Yeah, I noticed this too. Canadian universities have been
         | studying cannabis use using actual cannabis, so I'm not sure
         | why this metastudy considered anything else. "We need to
         | publish _something_ " perhaps.
        
       | sublinear wrote:
       | If anything, I think most people _discover_ anxiety with
       | cannabis.
       | 
       | It's a shame that first experiences with stress also coincide
       | with that phase of life, so the debate never ends.
        
       | Aurornis wrote:
       | This is a hard topic to communicate in depression treatment. It's
       | easy to mistake substances that temporarily boost your mood or
       | calm your nerves for effective treatments for an underlying
       | condition.
       | 
       | There was a brief period of time before the opioid prescribing
       | backlash when some fringe psychiatrists were proposing weaker
       | opioids as adjunctive treatments for treatment resistant
       | depression. It's hard to fathom now, but opioids were more
       | casually prescribed a few decades ago. I recall some discussion
       | where one of them said they were seeing good initial results but
       | the effects faded, and then it was hard to get the patients off
       | of the opioids when they were no longer helping. Not surprising
       | to anyone now, but remember there was a period of time where many
       | seemingly forgot about their addictive properties.
       | 
       | I feel like I've seen a weaker version of this in some friends
       | who turned to THC to "treat" their depression: Initial mood
       | boost, followed by dependency, then eventually into a protracted
       | period where they know it's not helping but they don't want to
       | stop because they feel worse when they discontinue. This wasn't
       | helped by the decades of claims that claimed THC was basically
       | free of dependency problems.
        
         | wahern wrote:
         | > but remember there was a period of time where many seemingly
         | forgot about their addictive properties.
         | 
         | There was also quite alot of talk about how doctors, by being
         | reticent to prescribe opioids, were inhumanely forcing patients
         | to live in pain, and not being sufficiently deferential to
         | patient autonomy. Moreover, the rhetoric was incorporated into
         | discussions about racist disparities in treatment, given there
         | was some evidence doctors were less likely to prescribe opioids
         | to black patients, suggesting doctors were systematically being
         | cruel. Naturally, the easiest way to dodge those accusations
         | was to simply prescribe opioids as a matter of course. Even in
         | the absence of Purdue Pharma pushing their claims about lack of
         | significant addictive potential, there was already significant
         | pressure to discount the risk of addiction.
        
         | andoando wrote:
         | This point of view makes no sense to me.
         | 
         | If you take it and you feel your anxiety is lessened, that's
         | the greatest proof you can ask for. All the psychiatric studies
         | are already based on self assessment.
         | 
         | Second, a lot of psychatric treatments are temporary, ending
         | whenever the medication is stopped or wears off so I dont see
         | how this would be any different
        
           | Aurornis wrote:
           | > If you take it and you feel your anxiety is lessened,
           | that's the greatest proof you can ask for.
           | 
           | This mistake has been made many time throughout history.
           | Cocaine was originally believed to be a viable treatment for
           | depression. Opioids and amphetamines too. You take them and
           | you feel good for a while, which was mistakenly equated with
           | treating depression.
           | 
           | Many drugs will make you feel good temporarily by blocking
           | certain feelings or tricking your brain into feeling good.
           | This is not the same as treating a condition.
           | 
           | You can think of actual treatments as working closer to the
           | source to reduce the problem, not temporarily overriding it
           | with a powerful drug-induced sensation.
        
             | noosphr wrote:
             | Alcohol too.
             | 
             | It's not a cure. It's a high.
        
             | mikkupikku wrote:
             | > _Cocaine was originally believed to be a viable treatment
             | for depression._
             | 
             | Is it not??
             | 
             | Sure there's the addiction and harm from abuse that make it
             | less than ideal for long term use, to put it mildly, but
             | weed isn't coke so what's really the argument here?
        
             | andoando wrote:
             | How do amphetamines treat the source of ADHD?
             | 
             | Psychiatry as its practiced has no idea as to what
             | depression even is under the hood. The entire science is
             | based on the patients self reported feelings or the
             | psychatrists feeling of how someone else is feeling.
             | 
             | What you're saying is something else, that drugs can
             | produce long term harm despite short term improvements
        
               | Aurornis wrote:
               | > The entire science is based on the patients self
               | reported feelings or the psychatrists feeling of how
               | someone else is feeling.
               | 
               | This study is showing that THC, CBD, blends, or cannabis
               | do not improve self-reported feelings over the long term.
               | 
               | You can use pedantry and wordplay all you want, but no
               | matter how we look at this study it does not show
               | positive effects.
               | 
               | > What you're saying is something else, that drugs can
               | produce long term harm despite short term improvements
               | 
               | Recreational drugs make you feel good temporarily. That's
               | literally why people do them.
               | 
               | They also cause harm when abused.
               | 
               | These are all obvious and well known facts.
        
               | andoando wrote:
               | I dont have a problem with the study or its conclusions,
               | just the parent post I was replying to.
               | 
               | >Recreational drugs make you feel good temporarily.
               | That's literally why people do them.
               | 
               | The point Im making is this is true for a ton of
               | psychiatric or even non psychatric treatments. And to be
               | perfectly clear Im not saying you should be treating your
               | anxiety with weed, even if it does help you
        
               | Aurornis wrote:
               | > The point Im making is this is true for a ton of
               | psychiatric or even non psychatric treatments
               | 
               | That point wasn't intended to be taken in isolation.
               | 
               | I was making statements about how long-term treatment of
               | an underlying condition is not the same as taking a drug
               | which temporarily masks a problem or induces altered mood
               | states.
               | 
               | The fact that a drug has acute effects, good or bad, is
               | separate from any conversation about chronic effects.
               | 
               | For depression, anxiety, and other conditions it's the
               | chronic effects that matter. The acute effects almost
               | become side effects at that point. For some drugs,
               | getting to long-term treatment involves tolerating the
               | acute effects while your body adapts
        
               | johnisgood wrote:
               | You keep ignoring the fact that what you just said
               | applies to current medications used to treat depression
               | and anxiety. They do not treat the underlying issue long-
               | term, and if you stop them, you are worse off than before
               | due to rebound effects, and even if those effects subdue,
               | your depression and anxiety returns. And just to add to
               | this for clarification, antidepressants may treat
               | depression, but it does not cure it either.
               | 
               | Same with amphetamines for ADHD. And yes, if you take
               | much more, you will experience side-effects ("cause harm
               | when abused"). Opioids are not an outlier at all.
               | 
               | > Recreational drugs make you feel good temporarily
               | 
               | Drugs are only recreational if you take them
               | recreationally, there is nothing that makes them
               | inherently recreational.
               | 
               | And we have not discussed MDMA, which is considered a
               | hard "recreational" drug, yet there are lots of benefits
               | for treatment of PTSD, for one, similarly to
               | psychedelics.
               | 
               | ... or ketamine for depression, which is now approved by
               | the FDA, even.
        
               | j45 wrote:
               | As doctors Psychiatry should definitely look at imaging
               | of the brain.
               | 
               | One place I'm aware of that works from imaging as well is
               | Amen Clinics in the US.
        
           | phainopepla2 wrote:
           | Duration of effect matters when it comes to successful
           | treatments.
           | 
           | If we take your position and apply reductio ad absurdum, we
           | could say that cocaine is a highly effective treatment for
           | anxiety, although of course we know that in the not-so-long
           | run it has the opposite effect.
        
             | andoando wrote:
             | But a lot of psychatric treatments are just that. Treatment
             | for ADHD for example is giving ampethamines (which btw are
             | chemically no different than a low dose of meth), which
             | have a duration of 3-6 hours and its back to worse than
             | baseline after the effect has worn off.
        
               | Aurornis wrote:
               | There are multiple treatments for ADHD, including alpha-2
               | receptor agonists and norepinephrine reuptake inhibitors.
               | Some of them show patterns of increasing efficacy out to
               | a year (the length of the study).
               | 
               | The reason amphetamines are used for ADHD but not
               | depression is that they've been studied to show that the
               | ADHD improving effect can remain for many months, while
               | the mood-improving effect will taper off quickly if you
               | take them every day. Almost everyone who takes ADHD
               | stimulant, feels a mood and motivation boost ("so happy I
               | could cry" is the common phrase) and then is disappointed
               | when that mood boost stops happening after a few weeks or
               | months will learn this. Attention enhancement is less
               | prone to tolerance, though it still accumulates tolerance
               | too. There are some studies showing that the effects of
               | stimulants in ADHD diminish substantially on a multi-year
               | time frame, and it's probably not a coincidence that many
               | people (though not all) who take stimulants discontinue
               | after several years.
        
               | sillywabbit wrote:
               | Meth causes brain damage. Dex doesn't.
        
               | landl0rd wrote:
               | Well, it's not that simple. It's reasonable to expect
               | that you could see some increased level of oxidative and
               | excitotoxicity. It's harder to draw a bright line around
               | the dopaminergic system specifically because some level
               | of neuronal death is expected over the course of a
               | lifetime. We lose 5-10% starting with middle age yet
               | don't tend to show parkinsonian symptoms until 60-80% are
               | gone.
               | 
               | It's pretty reasonable to expect reversing DAT and
               | inhibiting VMAT2 increases oxidative flux, the question
               | is really how much not if. Methheads certainly get "brain
               | damage", but is nudging the average loss from 5-10% to
               | 7-12% "damage"? Is it meaningful? Over 30, 40 years that
               | could very well add up.
        
           | olyjohn wrote:
           | I think the problem is that, at least in my experience, you
           | end up with more anxiety once the initial high wears off.
           | Paranoia is an extremely common side effect of Marijuana, and
           | so are nightmares with prolonged use. And once you kinda get
           | into a routine with it, you have a hard time quitting,
           | because your overall anxiety is raised, and you need it just
           | to get back to a normal functioning level. My guess is that
           | this is due to the effects that THC has on blocking your REM
           | sleep. Without the proper REM sleep, it seems pretty common
           | to be anxious and foggy-brained.
        
           | altmanaltman wrote:
           | Doing ten shots of tequila is a 100% scientifically proven
           | cure for social anxiety then. If you take it and your anxiety
           | lessens, that's the greatest proof you can ask for! Let's
           | just completely ignore the crippling morning hangover and
           | liver damage
        
             | tapoxi wrote:
             | But I don't think we've seen cannabis, especially when not
             | smoked, have anywhere near the health risk of alcohol.
        
             | Shog9 wrote:
             | I mean... Yeah. Alcohol is very well documented and even
             | more widely used for exactly this purpose BECAUSE it works.
             | 
             | The side-effects are often terrible. This is also true for
             | many widely-prescribed drugs, and has been even more true
             | in the past. The folks I've known on MAOIs were pretty
             | wrecked.
        
           | zdragnar wrote:
           | Psychiatric treatments return a person to a baseline that can
           | be managed with therapy or healthy coping mechanisms.
           | 
           | Chasing a high is not a treatment, it merely defers the
           | problem. As tolerance to the high builds, patients lose the
           | therapeutic value but have gained crippling dependency and
           | addiction.
        
           | jzb wrote:
           | There's a difference between intoxication and treating the
           | chemical imbalance behind depression or anxiety. For one
           | thing, treatments for anxiety only target the anxiety: they
           | don't impair the person the way that weed or alcohol does.
           | (They can have other side effects, of course.)
           | 
           | Drugs for anxiety treatment do wear off, but not the same way
           | that weed or alcohol does: something like Celexa takes a few
           | weeks to build up in the system, and don't lose effect 12-24
           | hours later if you miss a dose. I'm not sure how long you'd
           | have to stop before it loses efficacy entirely.
           | 
           | I'm not Nancy Reagan, though: I would not advise people to
           | self-medicate with booze or pot if they're suffering from
           | depression or anxiety, but I'm not going to preach at anybody
           | who is doing so and thinks it's working for them. I will say
           | that I've seen that end badly, though. I can think of three
           | people I'm close to who've tried it and have had problems
           | with addiction: all of them are now sober and (I believe) on
           | regular antidepressants.
        
             | andoando wrote:
             | Im prescribed adderall for ADHD. It is a high. You feel
             | more positive, more productive, more forward looking for a
             | few hours and its back to baseline or worse when you crash.
             | 
             | As for impairment, it really depends. If weed removes your
             | anxiety and lets you relax, its benefit could be greater
             | for what youre doing than the impairment it causes. And
             | adderall, SSRIs can cause impairment of sorts too.
        
         | trinsic2 wrote:
         | Yeah this has been my experience with THC. I never took it for
         | depression, but it was always a temporary thing. I doesn't
         | treat anything IMHO. its a symptom relief at best.
         | 
         | it works pretty good as a temporary relief from anxiety.
        
       | mihaaly wrote:
       | But it can cause memory loss, impaired motor coordination, and
       | food craving. Also memory loss.
        
       | wizardforhire wrote:
       | My initial take from reading the headline was: no shit this is
       | what mdma is for...
       | 
       | Tangentially, The etymology nerd in me has been taunted by the
       | current article thats been on the front page for the as of now
       | last 19 hours[1] which conveniently has the origin of the term
       | linked to in the first sentence! [2]... which @suprisetalk also
       | links to in the article description!...
       | 
       | So now I'm wondering why mdma has got the street name molly...
       | and if they're not perhaps related?
       | 
       | As in molly (aka mdma) has got the name as its used as a guard
       | against these ailments specifically...
       | 
       | [1] https://unsung.aresluna.org/molly-guard-in-reverse/
       | 
       | [2] https://en.wiktionary.org/wiki/molly-guard
        
       | monster_truck wrote:
       | Isn't the lancet the same journal that has published the vax-
       | autism and hydroxychloroquine studies?
        
         | Aurornis wrote:
         | The Lancet has been around for 200 years. It publishes weekly.
         | 
         | It's a highly regarded journal, but it doesn't mean 100% of the
         | papers published are perfect.
         | 
         | If you're trying to dismiss a study because it was published in
         | _The Lancet_ then that 's not a convincing line of reasoning to
         | anyone who understands the scientific publishing landscape.
        
         | foolfoolz wrote:
         | same lancet that tried to bury covid lab leak theories in
         | february 2020
        
           | object-a wrote:
           | Evidence for lab leak is extremely weak, zoonosis is the most
           | likely origin:
           | 
           | https://www.astralcodexten.com/p/practically-a-book-
           | review-r...
           | 
           | https://medium.com/microbial-instincts/the-case-against-
           | the-...
        
         | zarathustreal wrote:
         | These dismissals based on the source rather than the material
         | are getting really annoying. We're supposed to be intellectuals
         | here, we can do better than that.
        
       | haghding wrote:
       | me n my quarter brick beg to disagree
        
       | odinthedog wrote:
       | Matthew Hill offers a great interview on Andrew Huberman's
       | podcast -
       | https://open.spotify.com/episode/26PR93gyNcs8YPlQ9dypW3?si=V...
       | 
       | As someone who's used cannabis regularly for over a decade, I
       | tried to start to explain in this body my experience but every
       | sentence written ends with me deciding, "that's too
       | circumstantial to my lifestyle-physiology to include."
       | 
       | I think at the end of the day, empirical research's purpose is to
       | get us closer to being able to just make our own decisions
       | surrounding mind-altering drugs. Beyond that, cannabis affects a
       | great deal of systems in our body concurrent to the rest of our
       | environment's effects. Use your autonomy to determine if it's a
       | positive or a negative for you. Don't drive fucked up, please.
        
         | tannedNerd wrote:
         | This is the most reasonable take I've seen in this whole
         | thread. Alcohol doesn't reduce anxiety either yet tons of
         | people take it as a social lubricant and it probably does more
         | damage to those consuming it than those who consume weed. So
         | shrug? Just be responsible folks and let people blow off steam
         | how they like without judging it like weed is an 8 ball.
        
       | howmayiannoyyou wrote:
       | I see problems with this meta-analysis.
       | 
       | - Not adjusted for strain, dose or delivery method across all
       | studies.
       | 
       | - Not adjusted for receptor downregulation, for which rotation
       | and/or drug holidays would be appropriate strategies.
       | 
       | - Not adjusted across all studies for time effect, e.g. 6 hours
       | of relief, 1 hour, etc.
       | 
       | I can tell you from personal experience with a related disorder
       | that disciplined rotation of 10mg edible cannabis provides 90%
       | relief, 90% of the time, with far fewer side effects than
       | alternative medications for the same disorder.
        
       | jalla wrote:
       | So, a meta study. While important, it assumes that the underlying
       | studies are based on solid science.
       | 
       | So, why do people use cannabis then?
        
         | malfist wrote:
         | Why do people use cigarettes? Cocaine? LSD?
         | 
         | Not because they're effective treatments for mental disorders
        
           | Ylpertnodi wrote:
           | Evidence?
        
       | zug_zug wrote:
       | Edit:
       | 
       | Okay, I've read the meta-study now and I think the summary
       | article isn't representing the picture very well. In particular
       | they found for anxiety there actually seems to be evidence in
       | this exact data set that does help.
       | 
       | What they are doing is saying "there isn't 95% evidence it
       | reduces anxiety" therefore "no evidence" even though they mean
       | "some evidence, just not at the statistical significance level"
       | -- it's one of the biggest confusions (and sometimes it feels
       | deliberate) you'll see people do.
       | 
       | Also when you have a confidence interval that big it's a red
       | flag. They themselves admit the data is all over the place.
       | 
       | In summary, don't assume much from the title of the summary
       | article.
        
         | Bratmon wrote:
         | I guess if you weren't around for the 30 years when every
         | marijuana advocate on the planet wouldn't shut up about it
         | being a cure for anxiety, evidence that it is not wouldn't be
         | particularly interesting to you.
        
           | Ylpertnodi wrote:
           | > ...evidence that it is not wouldn't be particularly
           | interesting to you.
           | 
           | Were you stoned when you wrote that?
        
         | roywiggins wrote:
         | The data being all over the place on benefits, but pretty clear
         | on harms, is about as good a reason you could want for experts
         | not to recommend something as treatment. That's what it often
         | looks like when something doesn't work, or doesn't work very
         | well.
         | 
         | It's really easy to convince yourself that something works when
         | it doesn't, that's the whole reason why people have to take
         | statistical significance seriously.
        
       | paxys wrote:
       | Title says "helps" but the summary says "it doesn't effectively
       | _treat_ anxiety, depression, or PTSD ". Big difference between
       | the two IMO.
       | 
       | Plenty of people use cannabis to alleviate symptoms. I don't
       | think they expect to be cured entirely. Getting a good night's
       | sleep or being without chronic pain for a few hours is often
       | enough.
        
         | smt88 wrote:
         | "Treat" != "cure"
        
         | roywiggins wrote:
         | It's a meta-study and came to the conclusion that there isn't
         | reliable evidence that it alleviates symptoms of a bunch of
         | stuff:
         | 
         | > There were no significant effects on outcomes associated with
         | anxiety, anorexia nervosa, psychotic disorders, post-traumatic
         | stress disorder, and opioid use disorder. There were
         | insufficient data to meta-analyse studies of ADHD, bipolar
         | disorder, obsessive-compulsive disorder, and tobacco use
         | disorder. There was an absence of RCT evidence for the
         | treatment of depression.
        
       | Perenti wrote:
       | I've always been suspicious of the claims THC helps anxiety. CBD
       | may, but my experience is that high doses of THC without
       | corresponding CBD tends to induce anxiety in many people. I also
       | found the brief notes in the article about MMJ and autism
       | intriguing. I'm diagnosed ASD. I would think the use of THC to
       | manage overstimulation could be problematic, as it tends to make
       | colors and sounds and flavours _more_ intense. Conversely, indica
       | strains tend to slow you down.
       | 
       | DISCLOSURE: I use large amounts of high potency cannabis flower
       | with CBD/CBG edibles for intractable neuropathic pain. I also
       | smoked a hell of a lot of weed in my 20s and 30s. I've more
       | experience of Pot than most. MMJ lowers my pain a bit, and
       | reduces suffering a lot. Its the suffering that makes life
       | difficult.
        
       | Kon5ole wrote:
       | American media has really been shockingly pro weed/cannabis for
       | the past 20 or so years. Really astounding to witness considering
       | the well known downsides to human health and cognitive function.
       | Main characters smoke weed as a cool disobedience, in sitcoms
       | even.
       | 
       | Wonder what is behind it, from my perspective it's quite
       | remarkable.
        
         | themafia wrote:
         | People were smoking weed even when it was socially unacceptable
         | and illegal. Then they were going to jail for a decade or more
         | because of it. This simply did not make any sense. I believe
         | most of this is a backlash effect.
         | 
         | Weed was the worst thing ever. Weed is the best thing ever.
         | Eventually weed will be in the same category as coffee.
        
         | anon84873628 wrote:
         | Because the Schedule 1 prohibition was ridiculous. This is the
         | cultural pendulum swing to normalize it and push legalization.
        
           | t-writescode wrote:
           | The DARE program just had to tell the truth, but they didn't
           | and it made everyone question how bad everything really was,
           | if pot wasn't a problem.
           | 
           | Full agree here. Unfortunately, history is what clarifies why
           | pot is SO HUGE now rather than being something indifferent
           | about, like it should be.
        
         | ecshafer wrote:
         | Since the 1960s and the emergence of the New Left, and the
         | introduction of the Frankfurt School and 60s post modernism
         | into academia, there has been a widespread belief amongst a
         | large segment of the population that _everything_ traditional
         | is wrong. A social stigma is merely ignorance, that which is
         | seen as bad is actually good, traditions are wrong. All of
         | these things need to be overturned for the enlightenment. Since
         | society deemed marijuana bad, it is therefore good. As those
         | people who were went through that indoctrination in the 60s as
         | students got older, they got into power. They took power in
         | universities. By the 90s they were pushing all of the ideas as
         | the status quo. Students in the 90s then took those ideas, and
         | when they got into power in Media, they pushed those ideas into
         | all movies and tv.
        
           | Loughla wrote:
           | Alternate theory: there's a shit load of money to be made
           | with legal marijuana so it will be mainstream just to ensure
           | those paychecks keep coming. And for media, it's a low
           | hanging trope that if you want your character to seen edgy
           | but not dangerous, you have them do safe drugs like
           | marijuana. It's easier than the weeks of story it would take
           | to let the audience know they're just slightly anti
           | establishment.
           | 
           | I'm not sure I buy your theory even a little, to be honest.
           | The children of the 60's have, by and large, gotten FAR more
           | conservative as they've gotten older.
        
         | cj wrote:
         | I think it became socially acceptable because there's not a
         | huge reason to hate on it.
         | 
         | The risks to cognition and health exist, but they're no where
         | near as bad as alcohol or cigarettes (and the negative effects
         | basically don't exist at low, even moderate doses)
         | 
         | The biggest negative effect of using weed regularly is it seems
         | to slowly kill people's motivation to do stuff over time. It
         | will turn just about anyone into a couch potato. That's more
         | dangerous than any other effect IMO.
        
       | m0llusk wrote:
       | Studying the effects of recreational drugs is similar to studying
       | diet in terms of the level of complication. The headline "No
       | evidence" is a good example of the discourse about this subject.
       | There absolutely is such evidence, but this new analysis comes to
       | different, potentially more robust, conclusions from the same
       | data. As long as results are presented in this way a meaningful
       | shared comprehension of the situation is likely to remain out of
       | reach.
        
       | j45 wrote:
       | There seems to be more information out there about the effect on
       | the brain with cannabis and it doesn't always seem great long
       | term.
       | 
       | Might be different for THC/CBD in different ways.
        
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