Answer: methamphetamines
Step-by-step explanation:
The methamphetamine is a highly addictive drug. It is a stimulant which influence the brain and it's functioning. It is chemically similar to the amphetamine. It can increase the physical activity of the body, decrease the appetite, increase the breathing rate, makes the heartbeat irregular and rapid, increases the body temperature and blood pressure. It gives energy to the body and reduce chances of fatigue. It can severely affect the brain by causing permanent damage of the brain tissues.