marijuana

 

marijuana is a plant whose scientific name is ´´cannabis sativa ¨ . Its leaves , seeds , stems , and roots are consumed by marijuana users for the purpose of felling intoxicate ´´high´´ . Although the plant contains hundreds of compounds the one that has major intoxivating effects is called tetrahydrocannibinol (THC) .

Marijuana is the most commonly abused illegal substance worldwide, while the number of the people who use marijuana at any one time does not seem to have increased in the past decade
the number of people who have a marijuana related disorder has increased significantly.