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This Marijuana Study Demonstrates Why Some People Fear Legalization

Data source: University of Michigan via NIDA.

First, the good news: The percentage of students who smoke cigarettes and consume alcohol remains on a steady decline. Daily cigarette smoking is down to just 1.3% among eighth graders, 3% among 10th graders, and 5.5% for high school seniors. Five years ago, the daily smoking rates were 2.9%, 6.6%, and 6.7%, respectively. A similar decline was seen when past-month alcohol use was analyzed in eighth, 10th, and 12th graders.

The bad news from the MTF study? Marijuana use among high school eighth, 10th, and 12th graders remained steady over a five-year period, with 6.5%, 14.8%, and 21.3%, respectively, admitting to smoking marijuana within the past month. A full 6% of high school seniors admit to smoking marijuana daily. Perhaps most surprising, just 31.9% of today's students view occasional marijuana smoking as harmful compared to 78.6% in 1991.

Data source: University of Michigan via NIDA.

To sum up MTF's findings: High school seniors now smoke marijuana daily more often than they do cigarettes. While cigarettes are a vice of their own with proven adverse lung and cardiovascular effects, the jury on marijuana's safety profile is still out. Even more so, this demonstrates one of regulators' biggest fears: that minors will be able to get their hands on a drug that, even if legalized, would still likely be illegal for anyone to possess under the age of 21.

The other concern here is a previously conducted study from researchers at Northwestern University on adolescent marijuana users. The findings showed that adolescents who began using marijuana daily at age 16 or 17 for a period of three years had an oddly shaped hippocampus, which was accompanied by an average long-term memory test score that was 18% lower than the young adults who'd never used marijuana before.

Safety is an issue that won't easily be resolved

To be clear, the MTF study isn't suggestive that marijuana use is exploding higher despite marijuana being viewed more favorably by adolescents. However, witnessing the use of all vices dropping for adolescents, except for marijuana, has yielded some concerns.

The big issue at hand for regulators on Capitol Hill is whether marijuana can be used safely over the long run. Unfortunately for supporters of marijuana, this isn't a question that's going to be answered with any expediency. Clinical studies involving marijuana predominantly focused on its risks for decades, and only in recent years have we witnessed a discernible shift toward trials analyzing its possible benefits. It could be years, or even more than a decade, before regulators have a balanced safety profile that'll allow them to make a decision on whether to legalize marijuana at the federal level.

Marijuana-based businesses' survival could be at stake

Image source: Flickr user Mark.

In the meantime, marijuana businesses could struggle to thrive or in some cases even survive. Congress standing pat on its stance of marijuana being a schedule 1 drug means there should be minimal interaction between banks and marijuana-based businesses. Offering lines of credit or even basic banking services, such as a checking account, could be construed as money laundering by the federal government should it choose to reinstate federal law in place of its current "hands-off" approach. Operating a business without access to basic banking services is a growth challenge of epic proportions, and it also creates immense safety concerns since most businesses are forced to deal in cash.

The other issue here is taxation. U.S. tax code 280E prevents businesses involved in the sale of federally illegal drugs from taking deductions on their federal taxes. It means marijuana businesses are paying tax on their gross profit instead of their net profit. The government likely has no issue collecting the extra revenue, but this law is making it even more difficult for marijuana companies to profit and expand.

Ultimately, in spite of its massive market expansion potential, the gray clouds and uncertainty surrounding marijuana make it a very risky investment for the individual investor. Not only are most marijuana stocks traded on over-the-counter exchanges, where reporting standards are often not as rigid as on a major exchange like the NYSE, but they're pretty much all losing money.

On paper, marijuana looks like an intriguing investment opportunity, but if you dig below the surface, there are enough red flags to merit waiting safely on the sidelines.

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The article This Marijuana Study Demonstrates Why Some People Fear Legalization originally appeared on Fool.com.

Sean Williams has no material interest in any companies mentioned in this article. You can follow him on CAPS under the screen nameTMFUltraLong, track every pick he makes under the screen nameTrackUltraLong, and check him out on Twitter, where he goes by the handle@TMFUltraLong.The Motley Fool has no position in any of the stocks mentioned. Try any of our Foolish newsletter servicesfree for 30 days. We Fools may not all hold the same opinions, but we all believe thatconsidering a diverse range of insights makes us better investors. The Motley Fool has adisclosure policy .

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The views and opinions expressed herein are the views and opinions of the author and do not necessarily reflect those of Nasdaq, Inc.

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