The massive commercialization paired with a vanishing risk perception is especially problematic for individuals whose brains are not fully developed and who are naturally more inclined to engage in risky behavior—teens!
Marijuana affects brain development, especially in people under 25. When people begin using marijuana as teenagers, the drug may impair thinking, memory, and learning functions and affect how the brain builds connections between the areas necessary for these functions. The drug inhibits the ability to learn at a time when young people need it the most. As the example of Evan shows, using marijuana may depress brain function to the point where chronic use results in lethargy and a reduction in motivation. The more potent the weed, the more lethargic the user—and it’s not your parent’s reefer anymore.
Marijuana growers have been working on increasing the potency of cannabis for over fifty years now. The amount of THC—the chemical responsible for most of the plant’s psychoactive effects—has been increasing steadily over those decades. In the seventies, joints averaged a concentration of about one percent, close to the natural levels of the cannabis plant. In the early nineties, the typical THC concentration had increased to three percent. Now it often exceeds 15 percent.
In addition to that, cannabis is used in an even more concentrated form called hash oil or wax. So-called “dabbing” refers to the inhalation of concentrated THC products created through butane extraction. Butane hash oil (BHO) can reach incredible concentrations of over 50 percent. That is 50 joints of the seventies rolled into one.
Public-health experts are increasingly worried about the potent varieties hitting the legalized market and the rising number of constant users. “Cannabis is potentially a real public-health problem,” Mark Kleiman, a professor of public policy at New York University told The Atlantic.
The teen rehab professionals at Muir Wood know that all too many young Americans no longer believe using marijuana products involves serious risks. The ongoing normalization of marijuana use in the United States has reinforced the belief that cannabis use is neither harmful nor addictive. After all, their parents probably smoked it and state after state is now making it available for recreational use.
The normalization of marijuana use has led to increased use among young people—a troubling trend “given that the data showing the potential harms of marijuana is clear, strong, and growing.” (Marijuana page 174)
At the end of her article, Annie Lowrey suggests that “perhaps most important might be reintroducing some reasonable skepticism about cannabis, especially until scientists have a better sense of the health effects of high-potency products, used frequently. Until then, listening to and believing the hundreds of thousands of users who argue marijuana is not always benign might be a good start.”