Marijuana is the most commonly used illicit drug in the U.S. THC acts on specific cell receptors in the brain. Marijuana overactivates this system, causing impaired coordination and body movement, difficulty with thinking and problem-solving, disrupted learning and memory, and altered senses. Marijuana use can also cause breathing problems, increased heart rate, problems with child development during and after pregnancy, temporary hallucinations, temporary paranoia, depression, anxiety, and suicidal thoughts among teens.
A green and brown mix of dried flowers, stems, seeds and leaves from the hemp plant cannabis sativa. The main active chemical is THC (delta-9-tetrahydrocannabinol), which moves quickly through the lungs and bloodstream to the brain and other organs throughout the body.
AKA: BLUNT, MARY JANE, POT, SKUNK, WEED, CHRONIC
Marijuana, just like any other drug, can be addictive. It affects the brain’s reward system in the same way as other drugs of addiction and the likelihood of addiction increases considerably for those who start young. A teen’s decrease in cognitive abilities following marijuana use can last much longer than an adult’s, as long as several weeks. Regular use (daily or nearly daily) of marijuana affects how the brain builds connections between certain areas of function, which can lead to reduced thinking, lowered learning capabilities, a shortened attention span, and weakened verbal communication skills.
National Institute on Drug Abuse. Drug Facts: Marijuana.