Choose one of the following substances
 
1. Alcohol
 
2. Benzodiazepines
 
3. Central Nervous System Stimulants
 
4. Cocaine
 
5. Marijuana
 
6. Opioids
 
Write a 500- to 750-word summary describing the following:
 
1. How the substance is consumed
 
2. The pharmacology of the substance
 
3. The physiological effects of the substance on the human body.