Children who have used tobacco, alcohol, and marijuana are 266 times more likely to use cocaine than a child who has not used them. 1 in 10 who experiment will develop an addiction. Types of drugs Depressants those that ease tension and induce sleep. Alcohol is a depressant, it slows down heart rate, impairs vision, and thinking ability, aids in weight gain, and with prolonged usage may cause liver, heart and central nervous system damage.
Stimulants stimulate the brain and central nervous system, block feelings of hunger and fatigue.
Speed is a stimulant, it stimulates the brain and central nervous system, blocks feelings of hunger and fatigue, raises heart rate and blood pressure, blocks synapses in the brain which cause hunger and fatigue which may lead to nutritional problems and dehydration, increases alertness and confidence but does not allow the body to rest or recover from normal daily activities. Hallucinogens change perceptions, thoughts, moods, accompanied by hallucinations. Marijuana is a hallucinogen, it produces changes in perception, thought and mood, raises heart rate, lowers blood pressure, pupils are dilated or red. It reaches the brain in 7 seconds if smoked and traces remain in body 4 to 6 weeks per use. Narcotics opium and derivatives, pain relievers.