Marijuana is the most widely used illicit drug in the United
States and tends to be the first illegal drug teens use.
However, this is not to say that the majority of teens use
marijuana. Marijuana has several negative physical and mental
effects. Use of marijuana may impair or reduceshort-term memory
and comprehension, alter sense of time, and reduce ability to
perform tasks requiring concentration and coordination, such as
driving a car. What are the short-term effects of using
Marijuana? - Sleepiness and increased hunger - Difficulty
keeping track of time, impaired or reduced short-term memory -
Reduced ability to perform tasks requiring concentration and
coordination, such as driving a car - Increased heart rate -
Potential cardiac dangers for those with preexisting heart
disease - Bloodshot eyes - Decreased social inhibitions - Risk
of paranoia, hallucination, intense anxiety