Write a "D" in front of statements or words that describe depressants, an "H" before those about hallucinogens, and an "S" before those that describe stimulants.

Suppress the central nervous system

Marijuana

Numb the body to pain

Heroin

Can cause someone to see things that aren't there

Increase heart rate and adrenaline

Can cause heart attacks, seizures, and strokes

Caffeine

Act as a sedative

LSD

Ecstasy

Some types of these act like endorphins

Slow heart rate, breathing, and blood pressure to dangerous levels

Cocaine