This is your brain on drugs

Brain on marijuana image.

A Harvard-Northwestern study has found differences between the brains of young adult marijuana smokers and those of nonsmokers. In these composite scans, colors represent the differences — in the shape of the amygdala, top, and nucleus accumbens. Yellow indicates areas that are most different, red the least.

Weed or College?

Marijuana use holds steady among Fairfax County students
Perceived parental acceptance of drug on the rise

By Kate Yanchulis

The rate of marijuana use among Fairfax County teenagers is more than double the rate of tobacco use, according to the results of an annual survey of county students.

Fairfax County researching ways to crack down on sale of synthetic marijuana

Fairfax County officials are hoping to be able to crack down on synthetic marijuana that is being sold legally in stores in parts of Fairfax County.

"Dangers of Marijuana Use" by DEA

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