Match the words to the number
1. increases the activity of the central nervous system
2.
increases the heart rate and suppresses the appetite
first used by Europeans as a local anesthetic; now abused for
its euphoric effects
3.
4. found in coffee beans, tea leaves, and cocoa beans
5. reduces the activity of the central nervous system
6.
suppresses brain activity by blocking the ability of nerves in
the brain from sending or receiving signals
7.
reduces the physical and psychological symptoms of anxiety
by reducing brain activity
8. pain-killing drugs that are derived from opium

amphetamines
narcotics
barbiturates
tranquilizers
stimulants
cocaine
caffeine
depressants