Free Republic
Browse · Search
News/Activism
Topics · Post Article

Skip to comments.

Teen Pot Use Linked to Decline in IQ (or why Obama really stunk in the debate!)
NBC News ^ | August 27th, 2012 | Tia Ghose

Posted on 10/07/2012 8:18:16 AM PDT by grayhog

Teens who smoke marijuana see their IQs drop as adults, and deficits persist even after quitting, according to a new study.

"The findings are consistent with speculation that cannabis use in adolescence, when the brain is undergoing critical development, may have neurotoxic effects," study researcher Madeline Meier of Duke University said in a statement.

--------------------------------------------------------------------------------

The study followed 1,037 New Zealand children for 25 years. Subjects took IQ tests at age 13, before any of them had smoked marijuana, and again at age 38. Throughout the study, participants also answered several surveys about their drug use.

Roughly 5 percent of the participants started using marijuana as teenagers. Those who smoked marijuana at least four times a week and used marijuana throughout their life saw their IQ drop an average of 8 points, the equivalent of going from an A to a B student. The drop was not explained by other drug use, years of education, schizophrenia or using marijuana in the day before the test.

People who eventually quit smoking pot still had lower IQs than they did at the start of the study.

Interestingly, people who picked up the habit as adults had no IQ drop, suggesting that marijuana may not be as harmful to the mature brain.

The findings are the first to associate intelligence declines with marijuana use. Past work linked low IQ and marijuana, but couldn't rule out the possibility that people who choose to smoke pot are inherently less smart than abstainers.

It's not clear why pot is bad for teen brains.

One possibility is that teenagers are more vulnerable to marijuana's effects on brain chemistry, said Susan Tapert, a neuropsychologist at the University of California, San Diego, who was not involved in the study.

During adolescence, neural connections are pruned in the hippocampus and the prefrontal cortex, critical regions for learning, memory and planning, Tapert said.

Those regions may also soak up the active ingredient in marijuana."A lot of the areas that are still developing during adolescent years happen to be the areas with high cannabis receptor density," Tapert told LiveScience.

But those who consistently smoke marijuana may simply make less intellectually stimulating choices at critical points in life.

"What people tend to do when they're under the influence is different than they would otherwise," Tapert said.

For instance, pot users may be less inclined to attend classes or do other activities that give the brain a workout. Getting off track early on can also limit future opportunities and thereby reduce IQ, she said.

Related: 10 Ways to Keep Your Mind Sharp

"Teens need to view cannabis as not an entirely benign compound, but as something that can impair your judgment and might not be great for your brain," Tapert said.

The study is detailed Aug. 27 in the journal Proceedings of the National Academy of Sciences.


TOPICS: Constitution/Conservatism; Crime/Corruption; Culture/Society
KEYWORDS: cannabis; debate; drugs; drugwar; marijuana; obama; warondrugs; wod; wodlist; wosd
You would think NBC could connect the dots! Obama bombed the debate because he was too often bombed. He failed in the mile high city because too often he was just high! The same president who thanked his drug dealer and his pot smoking "choom gang" in his high school yearbook entry (but not his mother) is most likely seeing hs intellect seriously degraded. Good summary of his teenage pothead days here http://www.washingtonpost.com/blogs/election-2012/post/the-choom-gang-president-obamas-pot-smoking-high-school-days-detailed-in-maraniss-book/2012/05/25/gJQAwFqEqU_blog.html No wonder he won't release his grades - maybe he was smart at one time, but the cumulative effect of all of that marijuna leaves us a president who is just another burned out pothead.
1 posted on 10/07/2012 8:18:19 AM PDT by grayhog
[ Post Reply | Private Reply | View Replies]

To: grayhog

I thought watching the debate Obama was looking down to read notes. But the hanky faux scandal revealed the no notes rule.

Really odd body behavior to look down for thirty minutes. Made him look to display an odd mixture of insecurity and disrespectfulness bordering on contempt.

The videos coming out a day or two before. Did they get to Obama? He’s very thin skinned.


2 posted on 10/07/2012 8:24:35 AM PDT by TigerClaws
[ Post Reply | Private Reply | To 1 | View Replies]

To: grayhog

Two of the four kids in my family were potheads or worse. My sister and I have excelled and are living our chosen version of the American Dream. My two brothers have always blamed others for their lesser existences, but I know what the real reason is. Dope is for dopes!


3 posted on 10/07/2012 8:28:14 AM PDT by originalbuckeye
[ Post Reply | Private Reply | To 1 | View Replies]

To: grayhog

That is just so stupid, obama did not lose the debate because of the pot he smoked as a kid, it was because of the pot he smoked before he went on stage.


4 posted on 10/07/2012 8:28:39 AM PDT by svcw (Why is one cell on another planet considered life, and in the womb it is not.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: grayhog
....why Obama really stunk in the debate!

He be smokin' skunk afor it. Dat crap be hangin' on his clothes 'n' hair.

5 posted on 10/07/2012 8:30:38 AM PDT by Roccus
[ Post Reply | Private Reply | To 1 | View Replies]

To: svcw

GMTA

(heh-heh)


6 posted on 10/07/2012 8:31:49 AM PDT by Roccus
[ Post Reply | Private Reply | To 4 | View Replies]

To: grayhog

Dunno if pot reduces your IQ.

But I believe reading the koran does.


7 posted on 10/07/2012 8:33:57 AM PDT by Hardraade (http://junipersec.wordpress.com (I will fear no muslim))
[ Post Reply | Private Reply | To 1 | View Replies]

To: svcw

I think the reason all the lib shows are suddenly on board with the pot story, is that actually he’s addicted to something much stronger than pot. Smokescreen.


8 posted on 10/07/2012 8:34:23 AM PDT by Tuanedge (Warriors victorious in a hundred battles, flee when a tiger enters their tent.)
[ Post Reply | Private Reply | To 4 | View Replies]

To: grayhog
An 8 point difference in IQ is very small and very subjective. Any researcher with an agenda can show such a result.

On the other hand, Alcohol abuse causes 100% PROVEN PERMENENT BRAIN DAMAGE IN PEOPLE OF ALL AGES, but especially in kids. If I HAD to choose, I would rather have my kids smoke pot than binge drink. http://alcoholism.about.com/od/teens/a/blacer050216.htm

The other difference is that 95%+ of pot is sold by criminals who couldn't care less about selling to kids. 95%+ of alcohol/cigarettes are sold by legitimate businesses who can lose everything by selling to kids.

I work as a tutor for high school kids and every single one has told me pot is easier for them to buy than alcohol and cigarettes. Dealers don't card and don't care.

The intent of legalization is to have legitimate business for which carding can be enforced. Legitimate stores would take away the majority of the dealers’ customers and put them out of business.

9 posted on 10/07/2012 8:38:35 AM PDT by varyouga
[ Post Reply | Private Reply | To 1 | View Replies]

To: grayhog

Pot does very little damage to students compared to the damage inflicted by the US Department of Education.


10 posted on 10/07/2012 8:52:54 AM PDT by monocle
[ Post Reply | Private Reply | To 1 | View Replies]

To: Tuanedge

I think the president is manic-depressive, and does take some kind of medication.


11 posted on 10/07/2012 8:55:17 AM PDT by svcw (Why is one cell on another planet considered life, and in the womb it is not.)
[ Post Reply | Private Reply | To 8 | View Replies]

To: TigerClaws

Don’t know if pot constricts or dialates the pupils, but the bright stage lights I’ll bet had a lot to do with the looking down. IMHO


12 posted on 10/07/2012 8:55:57 AM PDT by Conservative4Ever (The Obamas = rude, crude and socially unacceptable)
[ Post Reply | Private Reply | To 2 | View Replies]

To: Conservative4Ever

Constricts, dilating would open them to allow more light, that’s why when they dilate your eyes at the doctor you are given those stupid paper sunglasses, the light is painful.


13 posted on 10/07/2012 8:58:14 AM PDT by svcw (Why is one cell on another planet considered life, and in the womb it is not.)
[ Post Reply | Private Reply | To 12 | View Replies]

To: grayhog
"I started using drugs because I wanted to fit in, but I continued to use
them because I got hooked on the sensation of losing contact with reality."


14 posted on 10/07/2012 9:05:44 AM PDT by Iron Munro (Obamaspeak: An army of pompous phrases marching across the landscape in search of an idea.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: svcw
That is just so stupid, obama did not lose the debate because of the pot he smoked as a kid, it was because of the pot he smoked before he went on stage.

It's a good thing he's got Valerie Jarett to wipe the coke off his nose and plug the Teleprompters in for him everyday.


15 posted on 10/07/2012 9:09:42 AM PDT by Iron Munro (Obamaspeak: An army of pompous phrases marching across the landscape in search of an idea.)
[ Post Reply | Private Reply | To 4 | View Replies]

To: grayhog

16 posted on 10/07/2012 9:13:55 AM PDT by KeyLargo
[ Post Reply | Private Reply | To 1 | View Replies]

To: KeyLargo
damn glad i dint have anything in my mouth when i saw that...
17 posted on 10/07/2012 9:19:25 AM PDT by Chode (American Hedonist - *DTOM* -ww- NO Pity for the LAZY)
[ Post Reply | Private Reply | To 16 | View Replies]

To: KeyLargo
Take another look at that chair in that political cartoon, it's no ordinary chair ..... it's a highchair training chair...


18 posted on 10/07/2012 9:22:15 AM PDT by American Constitutionalist
[ Post Reply | Private Reply | To 16 | View Replies]

To: grayhog
Teen Pot Use Linked to Decline in IQ

LOL!

I think it has more to do with the policy of Western governments who pay stupid people to breed.

19 posted on 10/07/2012 9:35:51 AM PDT by MamaTexan (I am a Person as Created by the Laws of Nature, not a person as created by the laws of Man)
[ Post Reply | Private Reply | To 1 | View Replies]

To: grayhog

How about he is just inept & was never smart enough to be prez!


20 posted on 10/07/2012 9:41:00 AM PDT by blondee123 (Our country is headed for DICTATORSHIP! WAKE UP!)
[ Post Reply | Private Reply | To 1 | View Replies]

To: grayhog

Not true. Obama did weed and raised his IQ from 50 to 57. Given his state of mind that is a 14% increase! Talk about economic growth! Blah, blah, blah!


21 posted on 10/07/2012 9:41:32 AM PDT by Young Werther (Julius Caesar said "Quae cum ita sunt. Since these things are so.".)
[ Post Reply | Private Reply | To 1 | View Replies]

To: grayhog
Warning: Pot use causes you to want to dance with white girls!

I searched: "does iq drop with age?"

This quote is from just one source, but numerous others agree... as we age, we get dumber! EVERYBODY does, but some more than others.

Duh!

Perception deficits gradually appear over the life span of individuals and seem to reach problem levels in older adults and can greatly impact functions in people with dementia or other cognitive-impaired conditions.

Note the hypodermic needles...
This message brought to you courtesy of Joseph Kennedy, Alcohol "Importer" and former gangsta!

22 posted on 10/07/2012 9:48:34 AM PDT by WVKayaker (I'm more than happy to be Obama's "enemy of the week" - Sarah Palin)
[ Post Reply | Private Reply | To 1 | View Replies]

To: svcw

OK so that blows my theory why he kept looking down...bright lights might not have been an issue.


23 posted on 10/07/2012 5:26:29 PM PDT by Conservative4Ever (The Obamas = rude, crude and socially unacceptable)
[ Post Reply | Private Reply | To 13 | View Replies]

To: grayhog
people who picked up the habit as adults had no IQ drop

But this gets only passing mention since it doesn't serve the big-government agenda.

24 posted on 10/08/2012 9:20:29 AM PDT by JustSayNoToNannies (A free society's default policy: it's none of government's business.)
[ Post Reply | Private Reply | To 1 | View Replies]

Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.

Free Republic
Browse · Search
News/Activism
Topics · Post Article

FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson