Promote muscle growth
Alcohol
Nail polish remover
Barbiturates
Increase the activity of the central nervous system
Nicotine
Drugs derived from testosterone
Cocaine
Caffeine
Amphetamines
Modify an individual's perceptual experiences
Marijuana
Household products sniffed to get high
Opiates
Glue
Tranquilizers
Harsh parenting
Ecstasy
Cleaning fluids
LSD
Rejection by peers
Slow down the central nervous system
High-risk family
Low parental monitoring
Used by athletes
