And caffeine is the most common stimulant. A stimulant quite simply stimulates the mind and body. As for being a depressant, this can only be considered somewhat true. While it causes the body and mind to relax, it also cause the dopamine in the brain to flow. read more
Cocaine is a powerfully addictive stimulant drug made from the leaves of the coca plant native to South America. Although health care providers can use it for valid medical purposes, such as local anesthesia for some surgeries, cocaine is an illegal drug. read more