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Study Shows Heavy Adolescent Pot Use Permanently Lowers IQ
Forbes ^ | 2/10/2015 | Travis Bradberry

Posted on 02/11/2015 3:15:57 PM PST by Mount Athos

A study more than thirty years in the making found that smoking marijuana permanently lowers intelligence, or IQ. Frequent pot smokers (even those who had given up marijuana) tended to have deficits in memory, concentration, and overall IQ. The reduction in IQ for those who smoked pot heavily prior to age 18 was most pronounced: an average of eight points. An eight point reduction in IQ is enough to have a significant, negative impact upon your life. To put it into context, consider that individuals with an IQ of 110 have an average net worth of $71,000 and individuals with an IQ of 120 have an average net worth of $128,000.

What’s significant about this research is that it was a longitudinal study: researchers followed and tested subjects from birth through to age 38, noting when and how frequently they picked up habits like drug use. Previous studies scrutinized marijuana use at a single point in time, which failed to eliminate the possibility that people with lower IQs are more likely to smoke pot. The longitudinal research provided a baseline IQ score for all subjects, which revealed changes in IQ scores as they picked up new habits, such as smoking pot.

By following subjects for decades, the researchers were able to measure the lasting effects of adolescent marijuana use (even after subjects gave up smoking pot). These effects last because the teenage brain is still developing at a rapid pace; myriad new pathways for thinking are formed during this period while others are weeded out. When teenagers expose their brains to a damaging substance like marijuana, the effects aren’t just drastic…they’re permanently etched into the brain. The reduction in IQ from smoking marijuana regularly was much greater for those who started smoking as teenagers

(Excerpt) Read more at forbes.com ...


TOPICS: Culture/Society; News/Current Events; US: Colorado
KEYWORDS: cannabis; colorado; g42; homosexualagenda; libertarians; marijuana; medicalmarijuana
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1 posted on 02/11/2015 3:15:57 PM PST by Mount Athos
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To: Mount Athos

huh?


2 posted on 02/11/2015 3:16:17 PM PST by mowowie (`)
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To: Mount Athos

Exhibit # 1 is in the White House.


3 posted on 02/11/2015 3:16:21 PM PST by Opinionated Blowhard ("When the people find they can vote themselves money, that will herald the end of the republic.")
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To: Mount Athos

D’oh , Man !!


4 posted on 02/11/2015 3:16:50 PM PST by molson209 (Blank)
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To: Opinionated Blowhard

ROFL


5 posted on 02/11/2015 3:17:25 PM PST by Patriot Babe
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To: Mount Athos

As Private Pyle was wont to say: “Surprise, Surprise”


6 posted on 02/11/2015 3:17:44 PM PST by centurion316
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To: Mount Athos

That’s the reason why there are so many democrats.


7 posted on 02/11/2015 3:18:16 PM PST by dragonblustar (Philippians 2:10)
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To: Mount Athos

Is that why we’ve called them “dopers” all these years with no study required?


8 posted on 02/11/2015 3:19:32 PM PST by Jim Robinson (Resistance to tyrants is obedience to God!!)
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To: Mount Athos

GEORGE SOROS....THE BIG MONEY MAN behind the push to LEGALIZE dope.....loves it..

more dumb young....easily lead voters...

voila..... Barack Obama..... Elected 2008..and 2012


9 posted on 02/11/2015 3:19:33 PM PST by MeshugeMikey ("Never, Never, Never, Give Up," Winston Churchill ><>)
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To: Mount Athos

Anyone who has ever met a pothead knows this. I knew a girl who was filling out apartment lease applications at 12 for her father who couldn’t see well, by 35 she didn’t know the difference between a credit card and a debit card.


10 posted on 02/11/2015 3:19:40 PM PST by GeronL
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To: Mount Athos

It took a study!?


11 posted on 02/11/2015 3:20:10 PM PST by rockinqsranch ((Dems, Libs, Socialists, call 'em what you will. They ALL have fairies livin' in their trees.))
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To: Mount Athos

So?

Studies show that drug laws lead to wrong doors being kicked in, pets and innocent people being shot, property being stolen under color of law, and prison beds being filled with non-violent offenders.

Between the threat to civil rights and stupid teenagers I’ll settle for stupid teenagers.


12 posted on 02/11/2015 3:20:21 PM PST by Little Ray (How did I end up in this hand-basket, and why is it getting so hot?)
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To: Mount Athos

Dude!! Wait, what?


13 posted on 02/11/2015 3:20:28 PM PST by willgolfforfood
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To: Mount Athos

All you’ve got to do is know a pothead to know this.


14 posted on 02/11/2015 3:20:42 PM PST by pfflier
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To: Little Ray

Between the threat to civil rights and stupid teenagers I’ll settle for stupid teenagers.


They will both cost you about the same in the end............


15 posted on 02/11/2015 3:23:06 PM PST by PeterPrinciple (Thinking Caps are no longer being issued but there must be a warehouse full of them somewhere.)
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To: Mount Athos
These effects last because the teenage brain is still developing at a rapid pace; myriad new pathways for thinking are formed during this period while others are weeded out.

Whoever wrote that should be severely punished.

16 posted on 02/11/2015 3:24:30 PM PST by Hugin ("Do yourself a favor--first thing, get a firearm!",)
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To: Mount Athos

Unfortunately, I’ve been saying this for years, but the potheads never believe it.


17 posted on 02/11/2015 3:25:09 PM PST by Cicero (Marcus Tullius)
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To: GeronL

Anybody who has ever met anyone that has abused any drug, food, sex act, never had a skilled job, government assistance and even over indulged the internet at a young age has a lower IQ.


18 posted on 02/11/2015 3:25:41 PM PST by eastforker (Cruz for steam in 2016)
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To: mowowie

Well this explains a lot about our current batch of old hippies in charge of the US congress today.


19 posted on 02/11/2015 3:25:52 PM PST by Afterguard (Liberals will let you do anything you want, as long as it's mandatory.)
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To: Mount Athos

When I was 16 & 17 I tried pot once a bunch of times, and 20 years later some of the folks who I used to smoke it with are still smoking.

When I run in to them from time to time they look 10 years older than the rest of us and just not the kind of people you can have a conversation with. Might as well be talking to a wall.


20 posted on 02/11/2015 3:26:18 PM PST by barmag25 (Cruz 2016)
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