Psychoactive Drugs Include Caffeine,nicotine,and Amphetamines

Q40: _ drugs produce a biological or psychological

Q41: In _ theory,dreams represent unconscious wishes that

Q42: Morphine and heroin are examples of _,which

Q43: _ is characterized by constricted breathing during

Q44: _,a stimulant,is what makes cigarette smoking so

Q46: _ is uncontrollable sleeping that occurs for

Q47: _ produce a sense of relaxation,but they

Q48: People who suddenly stop smoking do not

Q49: The key to meditation is concentrating on

Q50: What are some suggestions for overcoming insomnia?