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Cannabinoids Induce Brain Cell Growth?

ScuttleMonkey posted more than 8 years ago | from the lots-of-happy-people-made-happier dept.

Science 494

Harlan writes "The Globe and Mail is reporting that researchers at the University of Saskatchewan are claiming that high doses of cannabinoids have induced new brain cell growth in the hippocampus, the part of the brain responsible for learning and memory, in rat subjects. There are some interesting potential implications in regards to high doses of cannabinoids found in substances like marijuana."

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YEAH (0, Funny)

Anonymous Coward | more than 8 years ago | (#13802014)

WEeeeeEEEEEeeeeedddd

This was never really in doubt... (5, Funny)

gowen (141411) | more than 8 years ago | (#13802015)

I mean, have you seen the complexity of some of those home-made bongs?
There's some serious brain power gone into engineering those bastards.

It is still in doubt actually (5, Insightful)

nietsch (112711) | more than 8 years ago | (#13802147)

The mentioned research used 'canaboids', which is a group of componds resembling those found in cannabis(THC). It was already known that the brain uses neurotransmitters that are in the form of canaboids and it contains several types of receptor for it, just like opiates have human equivalents in the form of endorfines.
But similar results done with THC (Tetra Hydro Cannabinol), the main compound in hash and weed have found no evidence for this cellgrowth stimulation. So let's not jump for joy yet. One experiment/paper does not mean it has been accepted as scientific fact yet.
Besides, you can be sure that with such a hot subject and the way research is financed/politiced there will be more research 'debunking' this even if it turns out to be true after all.

Re:This was never really in doubt... (5, Funny)

NickABusey (642217) | more than 8 years ago | (#13802165)

Thurgood Jenkins: The MacGyver smoker is a very handy guy to have around, especially when it comes to reefer.
McGayver Friend: Hey, man, we're out of papers.
McGayver Smoker: All right. Then get me a toilet paper roll, a corkscrew and some tin foil.
McGayver Friend: We don't have a corkscrew.
McGayver Smoker: All right. Then get me an avocado, an ice pick and my snorkel.
McGayver Smoker: [Friend looks at him funny] Trust me, bro. I've made bongs with less. Hurry up!

Re:This was never really in doubt... (1)

Myu (823582) | more than 8 years ago | (#13802278)

Of course. How do you suppose the guys at Saskatchewan made this discovery in the first place? It doesn't take a rocket scientist hooped up on smack to work that one out. On the flip-side of the coin, though, this could potentially lead to a link between joints and the growth of cancerous cells, which would effectively eliminate its chances of legalisation.

Re:This was never really in doubt... (0, Offtopic)

mattyrobinson69 (751521) | more than 8 years ago | (#13802318)

i used to make them out of a plastic milk bottle and some scelotape and a nut.

cut the handle in half, attatch the nut with scelotape to half of the handle, seal the other half of the handle. worked great and easily disguarded

First Dose! (-1, Offtopic)

Anonymous Coward | more than 8 years ago | (#13802016)

'ere

Now I can say... (1, Funny)

Anonymous Coward | more than 8 years ago | (#13802020)

...that I am going to the health club when I pop into the local coffeeshop!

Re:Now I can say... (1, Offtopic)

davesag (140186) | more than 8 years ago | (#13802166)

coffeeshop you say - hmm you *must* be in The Netherlands then :-)

Re:Now I can say... (1)

billcopc (196330) | more than 8 years ago | (#13802285)

Gee, what do they call them in your neck of the woods ?

for those just tuning in, coffee shop = head shop

Re:Now I can say... (2, Interesting)

davesag (140186) | more than 8 years ago | (#13802361)

where I live head-shops are called smart-shops and sell mild magic-mushrooms and all manner of mostly piss-weak hallucinogens and rubbish like gurana power. in coffe shops you buy grass and hash off a weed-cart which is a menu, not a trolley. in cafes you can buy coffee, although most coffee-shops do sell coffee as well as weed and hash and space-cake. some even sell alcohol too. very few sell food. I am not sure why someone doesn't just set up a cafe that sells grass, hash and serves good food, beer, wine, cocktails. they could get rid of all the rubbish stereotyped bob-marley parephenalia too in my humble opinion.

specific brain cells? (1)

circletimessquare (444983) | more than 8 years ago | (#13802023)

i would suspect that THC spurs the growth of brain cells responsible for promoting hunger and suppressing satiety

specifically for cheetos

Re:specific brain cells? (0)

Anonymous Coward | more than 8 years ago | (#13802030)

I don't think that has to do with brain cell growth at all.

And don't forget about garlic pretzels, some of us are connoisseurs of ... stuff.

Re:specific brain cells? (1)

gauge boson (843775) | more than 8 years ago | (#13802075)

Not Cheetos... Funyons [imdb.com] .

Re:specific brain cells? (1)

Alioth (221270) | more than 8 years ago | (#13802078)

Nah, not Cheetos, those little bags of pizza bites.

Re:specific brain cells? (0)

Anonymous Coward | more than 8 years ago | (#13802220)

damn, you're a pro

Brain cells the are limiting factor (4, Insightful)

MichaelSmith (789609) | more than 8 years ago | (#13802024)

This is just my observation but when a persons health fails in old age, a key factor seems to be failure in the nervous system. I had a great aunt who lived five years after a stroke. Her body went downhill because her brain wasn't running the show properly.

So I think treatments which can help revive the brain can also help other systems in the body.

And it is the only organ which can not be replaced in some way by machinery.

Re:Brain cells the are limiting factor (1)

bersl2 (689221) | more than 8 years ago | (#13802080)

What about telomeres? Without replenishing them, most somatic cells will eventually stop reproducing. (IANAMolecularBiologist, however.)

Re:Brain cells the are limiting factor (1)

MichaelSmith (789609) | more than 8 years ago | (#13802172)

What about telomeres? Without replenishing them, most somatic cells will eventually stop reproducing.

That's true, but nerve cells reproduce so rarely that they should have much more life remaining than other cells.

I am not even sure if it has been shown that telomeres are the limiting factor in our current lifespan.

Re:Brain cells the are limiting factor (0)

Anonymous Coward | more than 8 years ago | (#13802351)

And it is the only organ which can not be replaced in some way by machinery.


I, for one, welcome our biomechanically enbrained overlords!

mirror ... for all you homeys too baked to click (0, Troll)

larry bagina (561269) | more than 8 years ago | (#13802027)

Calgary -- Forget the stereotype about dopey potheads. It seems marijuana could be good for your brain.

While other studies have shown that periodic use of marijuana can cause memory loss and impair learning and a host of other health problems down the road, new research suggests the drug could have some benefits when administered regularly in a highly potent form.

Most "drugs of abuse" such as alcohol, heroin, cocaine and nicotine suppress growth of new brain cells. However, researchers found that cannabinoids promoted generation of new neurons in rats' hippocampuses.

Hippocampuses are the part of the brain responsible for learning and memory, and the study held true for either plant-derived or the synthetic version of cannabinoids.

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"This is quite a surprise," said Xia Zhang, an associate professor with the Neuropsychiatry Research Unit at the University of Saskatchewan in Saskatoon.

"Chronic use of marijuana may actually improve learning memory when the new neurons in the hippocampus can mature in two or three months," he added.

The research by Dr. Zhang and a team of international researchers is to be published in the November issue of the Journal of Clinical Investigation, but their findings are on-line now.

The scientists also noticed that cannabinoids curbed depression and anxiety, which Dr. Zhang says, suggests a correlation between neurogenesis and mood swings. (Or, it at least partly explains the feelings of relaxation and euphoria of a pot-induced high.)

Other scientists have suggested that depression is triggered when too few new brain cells are created in the hippocampus. One researcher of neuropharmacology said he was "puzzled" by the findings.

As enthusiastic as Dr. Zhang is about the potential health benefits, he warns against running out for a toke in a bid to beef up brain power or calm nerves.

The team injected laboratory rats with a synthetic substance called HU-210, which is similar, but 100 times as potent as THC (delta-9-tetrahydrocannabinol), the compound responsible for giving marijuana users a high.

They found that the rats treated regularly with a high dose of HU-210 -- twice a day for 10 days -- showed growth of neurons in the hippocampus. The researchers don't know if pot, which isn't as pure as the lab-produced version, would have the same effect.

"There's a big gap between rats and humans," Dr. Zhang points out.

But there is a lot of interest -- and controversy -- around the use of cannabinoids to improve human health.

Cannabinoids, such as marijuana and hashish, have been used to address pain, nausea, vomiting, seizures caused by epilepsy, ischemic stroke, cerebral trauma, tumours, multiple sclerosis and a host of other maladies.

There are herbal cannabinoids, which come from the cannabis plant, and the bodies of humans and animals produce endogenous cannabinoids. The substance can also be designed in the lab.

Cannabinoids can trigger the body's two cannabinoid receptors, which control the activity of various cells in the body.

One receptor, known as CB1, is found primarily in the brain. The other receptor, CB2, was thought to be found only in the immune system.

However, in a separate study to be published today in the journal Science, a group of international researchers have located the CB2 receptor in the brain stems of rats, mice and ferrets.

The brain stem is responsible for basic body function such as breathing and the gastrointestinal tract. If stimulated in a certain way, CB2 could be harnessed to eliminate the nausea and vomiting associated with post-operative analgesics or cancer and AIDS treatments, according to the researchers.

"Ultimately, new therapies could be developed as a result of these findings," said Keith Sharkey, a gastrointestinal neuroscientist at the University of Calgary, lead author of the study.

(Scientists are trying to find ways to block CB1 as a way to decrease food cravings and limit dependence on tobacco.)

When asked whether his findings explain why CmdrTaco taked it up the ass, Dr. Sharkey paused and replied: "It does not explain the effects of smoked or inhaled or ingested substances."

Re:mirror ... for all you homeys too baked to clic (0)

Anonymous Coward | more than 8 years ago | (#13802091)

"a synthetic substance called HU-210, which is similar, but 100 times as potent as THC"
dang!!! who's in this team and can they hook a brother up!

the danks. (0)

Anonymous Coward | more than 8 years ago | (#13802148)

Notice use of the word "chronic" :)

MOD PARENT DOWN: TROLL (0, Informative)

Anonymous Coward | more than 8 years ago | (#13802354)

See subject. And last sentence of parents post...

Yay! (5, Funny)

sveskemus (833838) | more than 8 years ago | (#13802028)

I always suspected... uhm, what were we talking about again?

Man... (5, Funny)

Auraiken (862386) | more than 8 years ago | (#13802151)

If you're just going to talk, pass that over here.

Dude (2, Funny)

commodoresloat (172735) | more than 8 years ago | (#13802335)

Will you shut up and pass the twinkies?

Ah... (4, Funny)

iamdrscience (541136) | more than 8 years ago | (#13802036)

You might grow more brain cells, but all of these new cells will be dedicated to designing more complicated bongs and imagining conspiracies to unravel, so the net functional gain is minimal.

Re:Ah... (2)

nihilogos (87025) | more than 8 years ago | (#13802048)

What do you mean the net functional gain is minimal? The inventors of the quad-chamber bong were geniuses, and its sophistication is the hallmark of a civilized society.

So, what do you want to do tonight, Brain? (5, Funny)

bsartist (550317) | more than 8 years ago | (#13802049)

Same thing we do every night, Pinky - get baked and munch out.

Re:So, what do you want to do tonight, Brain? (1)

ettlz (639203) | more than 8 years ago | (#13802160)

Brilliant! Can anyone draw a cartoon of this?!

RE: Can anyone draw a cartoon of this?! (0)

Anonymous Coward | more than 8 years ago | (#13802291)

Someone can, indeed.

I'll smoke this spliff and get right on it, if I remember...

Take that parents! (2, Funny)

iamdrscience (541136) | more than 8 years ago | (#13802055)

Maybe skipping class to go smoke pot isn't such a waste of time after all...

Re:Take that parents! (1)

courseB (837633) | more than 8 years ago | (#13802092)

or skipping out during work... helped apple come up with programs like paint!

Great... (5, Funny)

fragmentate (908035) | more than 8 years ago | (#13802062)

Now that my kids have read this we can argue about, "But DAD, Slashdot says!"

Re:Great... (0)

Anonymous Coward | more than 8 years ago | (#13802138)

Now that my kids have read this we can argue about, "But DAD, Slashdot says!"

Your fault for letting your kids read Slashdot. Not only do they get to see goatsed IIS servers, but also pages that advocate pot.

Re:Great... (3, Insightful)

Anonymous Coward | more than 8 years ago | (#13802176)

Kids basing decisions on scientific studies - even if those contradict our belief systems and/or values [or those of our corporate overlords] - is still better than that children are kept in ignorance.

Actually, this applies to all people, not just kids. Take global warming as an example.

100 times more potent form of THC (2, Insightful)

layer3switch (783864) | more than 8 years ago | (#13802063)

Certainly that can't be in a form of inhaling. However why is that this picture is on the news? http://images.theglobeandmail.com/archives/RTGAM/i mages/20051014/wxcanna1014/1014joints.jpg [theglobeandmail.com]

Sounds like someone just got too excited to hear the news, lite up that pipe and start posting news with whatever picture taken from pot party he/she attended.

That just proves pot smoking kills more brain cells than promotes them. I rather eat fish than inject myself with 100 times more potent form of THC into my body on daily basis, thank you very much.

Re:100 times more potent form of THC (0)

Alioth (221270) | more than 8 years ago | (#13802096)

Now the real acid (or really, alkali) test on fish-vs-pot: would you rather eat LUTEFISK than use pot?

Re:100 times more potent form of THC (1)

layer3switch (783864) | more than 8 years ago | (#13802115)

I don't know about lutefisk, but I rather eat fish than use pot.

Re:100 times more potent form of THC (1)

Alioth (221270) | more than 8 years ago | (#13802130)

Lutefisk is fish. Or at least, it once was fish. Try it at your own risk.

Dude! (3, Funny)

pookemon (909195) | more than 8 years ago | (#13802065)

It, like, alters your mind! Wohoa!

Re:Dude! (1)

ozmanjusri (601766) | more than 8 years ago | (#13802253)

It, like, alters your mind! Wohoa!

So uhh, mind expanding drugs, like, make your mind bigger huh?

Pot is sooo 2005. (1)

crosstopher (820994) | more than 8 years ago | (#13802072)

1. Ingest a lot of this. [caymanchem.com] (twice a day for 10 days, human dosages uncertain, $35/mg.)
2. Wait 2-3 months for new neurons in the hippocampus to mature.
3. ???
4. Profit!

HU-210 (5, Funny)

gfody (514448) | more than 8 years ago | (#13802073)

The team injected laboratory rats with a synthetic substance called HU-210, which is similar, but 100 times as potent as THC (delta-9-tetrahydrocannabinol), the compound responsible for giving marijuana users a high.

Clearly my dealer has been lying to me. He swore there was nothing stronger than his stuff. Where do I get HU-210? ..or better yet, how do I make it?

About time. (1, Insightful)

Anonymous Coward | more than 8 years ago | (#13802079)

I've been smoking weed for years, and every time I get nice and baked, I tend to learn things quicker, and remember vividly everything I learn while high. I'm not surprised that injecting lab rats with a twice as potent THC like substance spurred neuron generation, quite frankly I'm surprised that in the USA, marijuana still remains illegal while drugs like Oxycontin are still kept in pharmacies. Perhaps that's why studies in this nature are conducted in other countries, the government wants you to use THEIR drugs. I say free the weed, it helps perpetuate neuron growth, so why stop it? Is the government afraid that, one day, the population might come out of a sobriety induced stupor to realize that the politicians are all overpaid bastards who leech off our money to feed their expensive tastes and high salaries, while giving us nothing but bullshit in return?

Re:About time. (1)

Kinky Bass Junk (880011) | more than 8 years ago | (#13802238)

"I'm not surprised that injecting lab rats with a twice as potent THC like substance spurred neuron generation,"

Interesting to note that those who habitually smoke Marijuana misread "100 times" as "double".

I'm in no way anti-pot, and am an occasional smoker. For around a week after getting baked, I always have hightened levels of creativity and, surprisingly, a higher attention span.

Only a pothead could mistake a human for a rat (-1, Troll)

kentrel (526003) | more than 8 years ago | (#13802082)

This is a press release, not a publication in a scientific journal. These kinds of stories come out all the time in the press, only to die a death on investigation by their pears, if the research even gets published after all.

Anyone surprised that a university comes out with a notion like pot is good for you. :)

Re:Only a pothead could mistake a human for a rat (1)

holy zarquon's singi (640532) | more than 8 years ago | (#13802113)

die a death on investigation by their pears

Normally I wouldn't do the grammar nazi thing, but you must have quite a case of the munchies there!

Re:Only a pothead could mistake a human for a rat (3, Informative)

chinodelosmuertos (805584) | more than 8 years ago | (#13802152)

If you read TFA you'd have read that the original publication is due to be released in JCI, a peer reviwed journal that is quite high impact. Not Nature or Science, but not the Ulan Bator Journal of Basket Weaving Medicine either.

Re:Only a pothead could mistake a human for a rat (1)

lixee (863589) | more than 8 years ago | (#13802168)

It IS a scientific research to be published in next month's journal. http://news.bbc.co.uk/1/hi/health/4338634.stm/ [bbc.co.uk] Now, I agree that exprapolating this finding to human is kinda wild.

Re:Only a pothead could mistake a human for a rat (1)

casemon (448599) | more than 8 years ago | (#13802197)

"only to die a death on investigation by their pears..."

Dude you are so high, there is like nooo waay my fruit can investigate me, much less carry a license to kill.

Re:Only a pothead could mistake a human for a rat (1)

SMS_Design (879582) | more than 8 years ago | (#13802338)

As a fruit, I find that statement offensive!

Laws of nature are different in the US (3, Funny)

Anonymous Coward | more than 8 years ago | (#13802086)

US Congress will make sure this is the case. Drugs may not harm the Canadians but they do harm American people.

This looks like the original data (link enclosed) (5, Informative)

CRabe (895026) | more than 8 years ago | (#13802105)

The authors are far more cautious in their interpretation than some of the /. readers...but then this is not that much of a surprise. PDF (a few MBs) http://www.pubmedcentral.gov/picrender.fcgi?artid= 1253627&blobtype=pdf [pubmedcentral.gov]

I don't get it... (4, Funny)

lightspawn (155347) | more than 8 years ago | (#13802129)

Why are rats attending a hippocampus in the first place?

Re:I don't get it... (1)

Scarletdown (886459) | more than 8 years ago | (#13802301)

Shouldn't that be hippiecampus now?

Easy (2, Funny)

commodoresloat (172735) | more than 8 years ago | (#13802349)

they're getting free weed there!

I have doubts... (0)

Anonymous Coward | more than 8 years ago | (#13802136)

If this is study is true... why can't I remember where I put my car keys?

Re:I have doubts... (0)

Anonymous Coward | more than 8 years ago | (#13802308)

Dude, you don't have a car.

I think there must be a mistake (3, Funny)

Brendor (208073) | more than 8 years ago | (#13802137)

This article was posted 13 minutes too late.

Re:I think there must be a mistake (1)

HazE_nMe (793041) | more than 8 years ago | (#13802174)

Ha Ha... I would have gotten that sooner if it wasn't for the different time zones

Would anyone... (0)

Anonymous Coward | more than 8 years ago | (#13802143)

... like to welcome our new dutch overlords?

Just in time... (1)

adrx (877379) | more than 8 years ago | (#13802146)

...for EuroOSCON [oreillynet.com] in Amsterdam !!!!

In moderation, many things are good (0)

Anonymous Coward | more than 8 years ago | (#13802158)

A glass of wine daily promotes health. Same thing goes for a little beer and some coffee.

This does not mean that 10 glasses of wine, 20 bottles of beer and 2 litres of coffee a day are healthy for you. In moderation, they aid health and your well-being, but in excess they don't.

Pot is likewise good in moderation to relax and to be creative.

The governments should allow adults access to any chemicals they choose to take. It should not be illegal to possess said chemicals, but it should instead be illegal to cause trouble for others if under the influence of a chemical. Common sense applied, it means you don't drive a car after smoking some pot, just as you don't drink and drive.

Re:In moderation, many things are good (0)

Anonymous Coward | more than 8 years ago | (#13802219)

what about getting fucked up the ass by a black guy? is it good to do that once a day?

actual paper (4, Informative)

geighaus (670864) | more than 8 years ago | (#13802159)

Actual paper can be found here [jci.org] .

Don't get your hopes up (1)

CZA2006 (901842) | more than 8 years ago | (#13802177)

This stuff isn't in your average joint.

I have my doubts... (1)

mrselfdestrukt (149193) | more than 8 years ago | (#13802189)

If this was true.... Then I would've been a freakin rocket scientist and neuro surgeon now instead of a lowly 3G Unix Network Management Specialist.
*scratches head* I must be doing something wrong. Maybe the dosage is not high enough? Maybe I'm not going to enough music festivals? Or maybe the alcohol is counter-acting the growth?
Yeah. It must be the fucking alcohol. Evil man-made drugs.
Well, I'm going back to the hotel to have a beer or 3 while I think about this.

Works for me (1)

vandan (151516) | more than 8 years ago | (#13802226)

It seems to slam short-term memory immediately after you've smoked it, but everything bounces back. I've maintained for years that my mind is more powerful thanks to the all the psychedelics I've had over the years. People will of course laugh at me, but I respectfully think I'm in the better position to be judging that. I've actually noticed a nice increase in performance, not to mention scope.

Re:Works for me (0)

Anonymous Coward | more than 8 years ago | (#13802277)

How old are you?

The brain continues to be anatomically refined through the teens and potentially early twenties. As a consequence our ability to plan and process information improves dramatically.

Further, if you are engaged in active learning (e.g., university student, recent graduate in a job requiring mental effort) your abilities willc continue to improve. You should notice greater capabilities in dealing with information. Overally, in any analyses involving a factor like pharmaceutical enhancements will be statistically confounded with time (and its elements).

Re:Works for me (1)

vandan (151516) | more than 8 years ago | (#13802360)

How old are you?

29. I'm a self-tought programmer. Perl, PHP, VB. Projects: http://entropy.homelinux.org/axis_not_evil/ [homelinux.org]

Overally, in any analyses involving a factor like pharmaceutical enhancements will be statistically confounded with time (and its elements).

?

Maybe it's just because I'm mildly stoned at the moment ( coming down from a doof - a couple of trips, and plenty of pot ), but ... HUH?

Never mind. Trust me, as a long-time explorer of my inner mind via psychedelics, I assure you that I know what's affecting what. You can tell when you're tripping that it's excercising parts of your mind that just don't usually get worked that hard. But for a brief couple of hours, they sure get work-out. And each time you return back to 'that place', your mind is noticable more nimble and powerful.

Re:Works for me (1)

MichaelSmith (789609) | more than 8 years ago | (#13802286)

I've maintained for years that my mind is more powerful thanks to the all the psychedelics I've had over the years.

When I was 19 I developed a siezure disorder and needed to have a CT scan. The radiologist connected me to an IV containing something which he claimed would make me feel slightly warm. What is did was convince me that my mind really was "more powerful" than anything in the known universe. For about three hours anyway.

Looking back, I don't think the experience made me any smarter. That one experience with a mind altering drug was probably more likely to kill me than the seizures I had been having.

Of course it is impossible for you to run your life twice - once with and once without drugs - so we don't really know if it has had any affect on you at all.

Re:Works for me (1)

vandan (151516) | more than 8 years ago | (#13802327)

I'm not really seeing the connection between your CT scan and my experience.

Of course it is impossible for you to run your life twice - once with and once without drugs - so we don't really know if it has had any affect on you at all.


That's pretty flawed logic. It's not necessary to live my life twice to judge the effects of one influence in my life. If it were, we'd never really learn anything, would we?

I sense that what you're trying to say here is "Yeah but you're just drug-fucked and not capable of self analysis". I disagree. Try some pot or some acid. It will be better than your CT scan, trust me.

Re:Works for me (0)

Anonymous Coward | more than 8 years ago | (#13802330)

Do you ever wonder why statistical power is ultimately a critical component of research?

Good Grief (1)

tehlinux (896034) | more than 8 years ago | (#13802231)

Let's just completely ignore any research that shows the negative effects of the "Chronic use of marijuana" and make a big deal about one single study that says it can improve learning memory. Sorry hippies, but the party is over.

Re:Good Grief (4, Insightful)

SilverspurG (844751) | more than 8 years ago | (#13802298)

Let's just completely ignore any research that shows the negative effects
I could if there were any.

Re:Good Grief (4, Insightful)

eboot (697478) | more than 8 years ago | (#13802341)

Its interesting that someone as obviously intelligent as yourself would site the previous studies about marijuana effects, compare them to this single study and then cut a withering remark about the end of the party for 'hippies', because of course they're the only people who smoke marijuana, but then you go and...

Fuck it all up by leaving a sig that suggests you enjoy alcohol abuse but justify it as medication. I have a lot of friends who have had marijuana problems but by the later stages of their lives they've left it behind. But anyone Ive ever known with alcohol problems struggles with it their whole lives until their liver pickles itself.

All for the Science (1)

cowboy76Spain (815442) | more than 8 years ago | (#13802236)

So, there is some web site where I could enroll as a test subject??? In case the investigation center is too far from me, they can email my doses and the tests to perform, I'll get those back to them!

Muddying the waters (0)

Anonymous Coward | more than 8 years ago | (#13802252)

It's terrible that kids use stuff like this to justify their habit. There's a lot of confusing stuff about pot out there but there are also mental wards filled with pot smokers, and I can personally vouch for the fact that pot worsens short term memory.

I smoked lots of it from the age of 13 to 18 and I find it much harder to concentrate and have a much worse short term memory. Me and my friends all told each other that research had been done which proved it didn't affect your brain at all, now every one of them agrees that our short term memory is noticeably worse than before.
I sought info on the web, and found out that lots of people who have smoked for a long time also feel like their memory has worsened, they say to live with it, and that it's "worth it". It's not.

http://www.hempfiles.com/forum/viewtopic.php?t=205 6 [hempfiles.com]
"Yeah Ive been smoking for 4 years and my short term memory is deffinatly not as good as it used to be. But hey what are yeah gonna do."
"I started smoking at about your age.. actually I don't really remember

but, I assure you that after a while these effects disapear, besides its not that bad to sacrifice a bit of your short term memory for happiness. I will probably be able to answer this a bit better tomorrow.. being drunk right now doesn't help me alot..."
"im smoking weed 2-3+ times a week I have found my short term memory is pretty much deteriorate for what it used to be. when I haven't smoked for a while (2weeks+) I find it harder to concentrate on thing like test, reading etc. like now I haven't smoked weed in about 2 weeks and I have been finding it really hard to concentrate in class and on work."
Bear in mind these aren't anti-pot activists, these are pot zealots who frequent forums on pot, and actually promote it!

Yet all you (and more importantly, children) hear are the articles about how "Pot becomes a class C drug in the UK!" "THC may have cured cancer in a lab rat!" "Hemp stronger than steel!" "New evidence shows Jesus may have smoked pot!". Not to mention all the TV shows, everyone except barney the dinosaur has had an episode on pot smoking, or a pot smoking charecter.
Even the leaflets which you get at school tell you that it only affects your short term memory in the short term, it's just not true.

Re:Muddying the waters (2, Interesting)

Scarletdown (886459) | more than 8 years ago | (#13802326)

Words of wisdom seen in someone's sig on another forum I frequent...

"Life should NOT be a journey to the grave with the intention of arriving safely in an attractive and well preserved body, but rather to skid in sideways, chocolate in one hand, wine in the other, body thoroughly used up, totally worn out and screaming "WOO HOO what a ride!"

Re:Muddying the waters (0)

Anonymous Coward | more than 8 years ago | (#13802363)

I wasn't saying 'don't do anything which harms your body', I'm saying that it's wrong to give children the impression that marijuana is harmless when it isn't. If I had only known that my short term memory and concentration would get affected in the way they have I wouldn't have touched pot. But if you understand what it will do to you, and still want to do it, then fine.

Re:Muddying the waters (0)

Anonymous Coward | more than 8 years ago | (#13802384)

the impression that marijuana is harmless when it isn't
And those harms are what, supposedly?
f I had only known that my short term memory and concentration would get affected in the way they have
You're looking for something to blame.

Say ... (0)

Anonymous Coward | more than 8 years ago | (#13802259)

I think I...I heard this recently...

Oh. It was at the top of the page.

Never mind.

Uh Oh!! (1, Funny)

Anonymous Coward | more than 8 years ago | (#13802267)

Seriously was I the only one who saw the headline and thought "cannibal androids had found a way to increase our brain sizes so they have more food!?!?!" before thinking "why would cannibal androids eat humans!?"

Math+Cannabis (2, Interesting)

deplifer (923272) | more than 8 years ago | (#13802271)

Got this 2 weird dudes @ my university, they smoke weed(in high doses) all day long. They take Advanced Math and Graphics Programming and do it exeptionally well.

So there sure is some truth in this article(research).

Re:Math+Cannabis (0)

Anonymous Coward | more than 8 years ago | (#13802290)

or perhaps they're just very capable at those subjects?

I've a family member who smokes weed and she barely remembers conversations she had yesterday. There's a reason it's called dope.

Re:Math+Cannabis (0)

Anonymous Coward | more than 8 years ago | (#13802294)

Perhaps their starting capacity/IQ far exceeds yours, or the average, or the above average.

The article addresses the potential effects on mood and neurogenesis. Simply having more neurons does not ensure increased performance. Wiring/synapses are governed by genetics and adaptation to the environment (i.e., learning). If need be the system prunes both neurons and synapses. For example, synaptic pruning is apparently critical through the teen age years...

No wonder (1)

vijaya_chandra (618284) | more than 8 years ago | (#13802273)

that i realise am God once in a while after ....

so was the case with my predecessor mr.holmes

Related discovery! (1)

sonicattack (554038) | more than 8 years ago | (#13802276)

...And in a related discovery, it was found that working on your forehead with a cheese grater induces skin cell growth.

Re:Related discovery! (1)

mrselfdestrukt (149193) | more than 8 years ago | (#13802305)

Ouch!!! Damn you. I'm starting to think you were just sarcastic. Damn my policy of trying everything once...
My forehead hurts.

Free the herbal remedies, its our damn world. (1)

davro (539320) | more than 8 years ago | (#13802283)

The Erb remains illegal while other "legal" taxable drugs run rampant.
These "legal" drugs are prescribed, WE conform to the usage, procedure, or discipline; "in prescribed order"
We are resources under management.

Blaze and Learn, repeate and maintain state.

cell growth (0)

Anonymous Coward | more than 8 years ago | (#13802292)

Well, Cell growth doesn't have to be a good thing. The hippocampus has an important role in the transition of short term memories into long term memories. (the thing that obviously goes wrong when you're stoned) Perhabs this reflects a compensation of the brain to malfunctioning memory.

Lots of Research on Cannabinoids in Cannabis (5, Informative)

Ron Bennett (14590) | more than 8 years ago | (#13802317)

What a surprise to click on Slashdot and see news about cannabinoids - I feel like I'm reading my own site ...

I operate CANNABIS.COM ... shortcut url http://cann.com/ [cann.com]

Some informative pages to check out:

Lots of cannabis Research information *with sources listed*
http://www.cannabis.com/research/ [cannabis.com]

TR-446 Toxicology and Carcinogenesis Studies of 1-Trans-Delta9-Tetrahydrocannabinol (CAS No. 1972-08-3) in F344 Rats and B6C3F1 Mice (Gavage Studies)
http://www.cannabis.com/research/tr446study.shtml [cannabis.com]
(mirror of the study published by the U.S. National Toxicity Program)

Cannabis News
http://www.cannabisnews.com/ [cannabisnews.com]

And finally, Erowid's Cannabis Vault...
http://www.erowid.org/plants/cannabis/cannabis.sht ml [erowid.org]

Ron Bennett

Re:Lots of Research on Cannabinoids in Cannabis (1)

megrims (839585) | more than 8 years ago | (#13802365)

Hmm. Why do you need a shortcut URL? Trouble concentrating?

Excellent (1)

squoozer (730327) | more than 8 years ago | (#13802321)

Get doped up and more intelligent at the same time. Life couldn't be better.

Lets fund more research like this. We all know that if enough people believe something is true then it is true.

Not Tested on Humans (2, Funny)

obender (546976) | more than 8 years ago | (#13802340)

They can cure diabetes in rats, they can grow organs in rats, now they can increase the rat brain. Still it does not mean much to us, none of these works in humans yet. Rats are similar but not identical.

Yeah I know, in Soviet Russia communism was first tested on humans before being tested on rats.

Re:Not Tested on Humans (2, Funny)

Scarletdown (886459) | more than 8 years ago | (#13802359)

Do I dare say it?

I, for one, welcome our new drugged-up hyperintelligent rodent overlords.

Now, all this weed talk is giving me the munchies.

Almost got me there! (0)

Anonymous Coward | more than 8 years ago | (#13802344)

University of Saskatchewan?
Try getting a stoned person to pronounce it, there you have proof enough that the research is flawed.

I think... (1)

Elitist_Phoenix (808424) | more than 8 years ago | (#13802366)

I think that some of the moderators completly disprove this.
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