Answer:
fast heart rate with extreme alertness and high energy
Step-by-step explanation:
Amphetamines are drugs that act by stimulating the central nervous system, thereby speeding up the chemical signals that travel between the brain and the body. These substances (amphetamines) can be legal or illegal. For example, Adderall and Dexedrine are amphetamine drugs currently approved by the U.S. Food and Drug Administration (FDA) for therapeutic use, whereas 'ecstasy is an illegal drug used for recreation. Amphetamines can increase heart rate and blood pressure and thus cause cardiovascular diseases (causing inflammation and artery spasms). Moreover, amphetamines also increase energy by stimulating the release of dopamine (a neurotransmitter) in the frontal cortex, which causes feelings of happiness, increases alertness and decreases fatigue.