In the 1970s marijuana use rarely led to addiction.Why,then,are so many marijuana smokers now getting caught in pattern of addiction?
A) Marijuana is more readily available than in the past.
B) Marijuana use itself is increasing, because it has become more socially acceptable than it was in the past.
C) Marijuana today contains more THC than it did in the past.
D) Marijuana is more often mixed with stronger drugs, such as cocaine, than was the case in the past.

Question

Quizplus · Accepted Answer

THC, or delta-9-tetrahydrocannabinol, is the psychoactive component of marijuana that produces the "high" sensation. Today's marijuana contains significantly higher levels of THC than it did in the past, which may increase the risk of addiction. Studies have shown that higher levels of THC are associated with increased risks for addiction, and regular use of high-potency marijuana may be associated with an increased risk of developing dependency.

In the 1970s Marijuana Use Rarely Led to Addiction