New study alleges that marijuana may not make people stupid after all

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Don't Blame the Marijuana for Low IQ Scores
You've probably been told that smoking marijuana makes you stupid, but according to scientists this myth is not true.

A new study on multiple pairs of twins -- one pot smoker and one non-smoker -- discovered that marijuana is not linked to a decline in IQ.

SEE ALSO: Alarming state of drug abuse in the United States

The new research combats the findings of a a 2012 Duke University study, which reported that heavy marijuana use through teenage years and young adulthood attributed to declines in IQ.

A follow-up study found that the 2012 research did not account for factors such as mental illness, cigarette use, and socioeconomic status.

In order not to have the same problem, researchers at UCLA and the University of Minnesota studied 789 sets of twins.

While studying the lives of the twins, scientists found that both experienced a similar IQ decline through the years, according to Science.

Statistician and author of the new study Nicholas Jackson does warn that just because marijuana use is not linked to lowering of IQ, "does not mean that heavy use in adolescence is problem-free."

"We desperately need more research on the effects that marijuana has on the brain," says Jackson.

Related: Marijuana laws by state:
51 PHOTOS
Marijuana laws by state
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New study alleges that marijuana may not make people stupid after all

Alabama

No legalization of any kind

(Photo: Dennis Macdonald via Getty Images)

Alaska

Marijuana legalized for medical and recreational use 

(Photo: Zoonar/N.Okhitin via Getty Images)

Arizona

Marijuana legalized for medical use

(photo: TaylorB90/Flickr)

Arkansas

No legalization of any kind 

(photo: yorkfoto)

California

Marijuana legalized for medical use

(Photo: Dorling Kindersley via Getty Images)

Colorado

Marijuana legalized for medical and recreational use  

(Photo: Shutterstock)

Connecticut

Marijuana legalized for medical use 

(photo: Shutterstock)

Delaware

Marijuana legalized for medical use 

(photo: Shutterstock)

Florida

No legalization of any kind

(photo: Shutterstock)

Georgia

No legalization of any kind

(photo: Shutterstock)

Hawaii

Marijuana legalized for medical use

(Photo: Shutterstock)

Idaho

No legalization of any kind

(photo: Shutterstock)

Illinois

Marijuana legalized for medical use

(Photo: VisionsofAmerica/Joe Sohm)

Indiana

No legalization of any kind

(Photo: Shutterstock)

Iowa

No legalization of any kind

(photo: yorkfoto)

Kansas

No legalization of any kind

(photo: Shutterstock)

Kentucky

No legalization of any kind

(Photo: Dorling Kindersley via Getty Images)

Louisiana

No legalization of any kind

(Photo: Shutterstock)

Maine

Marijuana legalized for medical use

(photo: Shutterstock)

Maryland

Marijuana legalized for medical use

(Photo: Shutterstock)

Massachusetts

Marijuana legalized for medical use

(photo: Shutterstock)

Michigan

Marijuana legalized for medical use

(photo: Shutterstock)

Minnesota

Marijuana legalized for medical use

(photo: anthonylibrarian/Flickr)

Mississippi

No legalization of any kind

(Photo: Medioimages/Photodisc via Getty Images)

Missouri

No legalization of any kind 

(Photo: Shutterstock)

Montana

Marijuana legalized for medical use

(photo: J.Stephen Conn/Flickr)

Nebraska

No legalization of any kind 

(photo: Shutterstock)

Nevada

Marijuana legalized for medical use

(photo: Shutterstock)

New Hampshire

Marijuana legalized for medical use

(photo: Shutterstock)

New Jersey

Marijuana legalized for medical use 

(Photo: Shutterstock)

New Mexico

Marijuana legalized for medical use 

(photo: Shutterstock)

New York

Marijuana legalized for medical use

(photo: Shutterstock)

North Carolina

No legalization of any kind

(photo: Getty Images)

North Dakota

No legalization of any kind

(Photo: Shutterstock)

Ohio

No legalization of any kind

(photo: Shutterstock)

Oklahoma

No legalization of any kind

(photo: Shutterstock)

Oregon

Marijuana legalized for medical and recreational use  

(Photo: Shutterstock)

Pennsylvania

No legalization of any kind

(photo: Henryk Sadura)

Rhode Island 

Marijuana legalized for medical use

(Photo: Shutterstock)

South Carolina

No legalization of any kind

(Photo: Shutterstock)

South Dakota

No legalization of any kind

(Photo: Norman B. Leventhal Map Center at the BPL/Flickr)

Tennessee

No legalization of any kind

(photo: Shutterstock)

Texas

No legalization of any kind

(Photo: Shutterstock)

Utah

No legalization of any kind 

(Photo: Shutterstock)

Vermont

Marijuana legalized for medical use

(photo: Shutterstock)

Virginia

No legalization of any kind

(photo: Shutterstock)

Washington

Marijuana legalized for medical and recreational use 

(photo: Shutterstock)

West Virginia 

No legalization of any kind

(Photo: dk_photos via Getty Images )

Wisconsin

No legalization of any kind 

(photo: Kubrak78)

Wyoming

No legalization of any kind

(Photo: Space Images via Getty Images)

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