The effects of drugs

Cocaine is a narcotic drug extracted from the South American coco plant. Cocaine deadens skin and mucous membranes. A doctor may use it to deaden the area around a wound before he cleanes it or takes stitches. When it is taken internally, cocaine causes a temporary stimulation of the nervous system ans a feeling of pleasure. However, later, the victim is seized by a feeling of great fear and may even become violent. Marijuana is …

…made in laboratories and are called synthetic drugs. It may surprise you to learn that naturally occuring drugs are found in coffee, tea, and cocoa and the Kola nut which cola drinks are made. These popular beverages contain substances which prevent sleep and cause emotional excitment. These substances and others which cause similar responses are called stimulating drugs. Coffee and tea are widely consumed and its easy to form the habit of the "coffee break".