http://journal.frontiersin.org/Journal/10.3389/fnins.2014.00361/abstract

Long-term marijuana use starting before 17 years of age leads to cognitive impairment and increased risk of psychotic disorders.

Marijuana is the most widely used illicit drug among adolescents and young adults. Unique cognitive, emotional, and social changes occur during this critical period of development from childhood into adulthood. The adolescent brain is in a state of transition and differs from the adult brain with respect to both anatomy (e.g., neuronal connections and morphology) and neurochemistry (e.g., dopamine, GABA, and glutamate). These changes are thought to support the emergence of adult cerebral processes and behaviors. The endocannabinoid system plays an important role in development by acting on synaptic plasticity, neuronal cell proliferation, migration, and differentiation. Delta-9-tetrahydrocanabinol (THC), the principal psychoactive component in marijuana, acts as a partial agonist of the cannabinoid type 1 receptor (CB1R). Thus, over-activation of the endocannabinoid system by chronic exposure to CB1R agonists (e.g., THC, CP-55,940, and WIN55,212-2) during adolescence can dramatically alter brain maturation and cause long-lasting neurobiological changes that ultimately affect the function and behavior of the adult brain. Indeed, emerging evidence from both human and animal studies demonstrates that early-onset marijuana use has long-lasting consequences on cognition; moreover, in humans, this use is associated with a two-fold increase in the risk of developing a psychotic disorder. Here, we review the relationship between cannabinoid exposure during adolescence and the increased risk of neuropsychiatric disorders, focusing on both clinical and animal studies.

Full text available in the link.

Hmm.

Come Max, don't you know all sources are biased?

Oh right, my bad...

isnt this old news?

Well, this was published in November of 2014. Not like...OLD old.

Quote from: Mad Max on January 13, 2015, 07:42:28 PM

Quote from: Azumarill on January 13, 2015, 07:40:37 PM

isnt this old news?

Well, this was published in November of 2014. Not like...OLD old.

i mean, i feel like we've known this for at least a year or so. i wasnt necessarily referring to this specific study, which im sure was meant to act as a followup to previous research to help clear some things up.

Perhaps there were others. I can't say I know for sure.

I don't care if weed gave me cancer, I'd still smoke it.

I don't care if weed gave me cancer, I'd still smoke it.

it can give you lung cancer

anything you smoke can

but who cares we're all gonna die anyway might as well have some fun before then

Don't let Camnator see this.

I mean, it shouldn't be a problem. I don't think he's ever even stepped foot in Serious.

I get really annoyed at my stoner friends online for smoking that crap as much as they do. My one former friend was 17 years old and she would smoke it every day and always be telling me about their bong hits and shit. Not only is it annoying, but I seriously think that it effects their cognitive function. People always seem a bit slower when they are smoking weed and trying to talk to me. It's like it's harder for them to carry a train of thought. It's a really fucking annoying drug that gets way way way way way too much notoriety among people. I would smoke it, and I would legalize it, but I just think that it's really stupid the way some people treat it.

Quote from: Mad Max on January 13, 2015, 10:05:26 PM

Quote from: challengerX on January 13, 2015, 10:00:00 PM

Quote from: Mad Max on January 13, 2015, 09:58:53 PM

Quote from: challengerX on January 13, 2015, 08:32:33 PM

If you're going to let trivial things like that keep you from smoking dank weed you don't deserve to live.

I...didn't say that?

I don't know man I'm getting a pretty strong anti dank vibe here.

I'm mostly in favor of legalizing marijuana across the board. My only hang-up is there's no reliable field test for marijuana use if you get pulled over or something. With alcohol, it effects most people in a similar manner, and on a relatively linear and predictable scale. The same doesn't happen with marijuana use. Once we have something reliable, I'm all for it.

I have no beef with people who want to smoke weed. Many of my friends do. I've done it a handful of times, but I just don't like the feeling of being high.

Uh

I was joking.

...oh...

And we smoke substances that turn our lungs into shriveled prunes, drink liquids that kill our braincells, and eat fast food that cakes our heart in grease. If this was a jab at the legality of Marijuana then it isn't a very good one.

I can also find lots of conflicted studies that dispute this, but we aren't even allowed to conduct official studies cause the gubment or something.