Used by nearly 40 million people, marijuana ranks as the most commonly used illicit drug in the United States. Currently, 36 states allow medicinal use of marijuana, and 18 states plus Washington D.C. permit recreational use of the drug. It is likely only a matter of time before marijuana is decriminalized throughout the country.
Whether or not this comes to pass, there needs to be an increase in education around the risks of using the drug. One direct result of increasing marijuana use is impaired driving. As states continue to legalize marijuana, more people are driving under the influence of the high-potency drug, and research is showing the increased risks of marijuana-related impaired driving.
How Does Marijuana Misuse Affect Driving?
Many of the side effects of using marijuana are similar to those experienced with excessive alcohol use because of how marijuana affects the brain. There is ample research showing that driving high is incredibly similar to driving drunk.
In some cases, driving while high is even more dangerous. Why? One reason is the much higher concentration of THC found in marijuana today. Depending on the marijuana product, the levels of THC may vary, and therefore can cause more severe symptoms and impaired driving.
When marijuana is smoked, the THC in the smoke easily passes from the lungs into the blood, where it is then carried throughout the body and to the brain. The THC content in marijuana cigarettes is roughly 15%. As the THC takes effect on the brain, it produces the “high” sensation. Some of the effects of marijuana on the brain can include:
- Altered sense of time
- Altered senses
- Delusions
- Impaired body movement
- Memory problems
- Mood changes
- Trouble thinking
In comparison, marijuana concentrates have very high levels of THC. Concentrates might take the form of hash oil or wax, a hard amber-colored solid, medicated balms, or edibles. Solvent-based products have been documented with THC levels averaging 54-69% and even exceeding 80%, and non-solvent based products have been found with THC levels of 39-60%.
(Also, one study found that 80% of the concentrate samples it tested were contaminated either with pesticides or residual solvents that were not fully purged in the manufacturing process.)
According to the National Institute on Drug Abuse: “not only do concentrates have high levels of THC, but dabbers inhale the entire amount all at once — in a single breath. As a result, concentrates can deliver extremely large amounts of THC to the body quickly. The risks of physical dependence and addiction increase with exposure to high concentrations of THC, and higher doses of THC are more likely to produce anxiety, agitation, paranoia, and psychosis.”