Classic Model: Have to be physically dependent
Cross-Dependence: withdrawal differs from drug to drug
Modern Model: we can be physiologically dependent, physically dependent, or both
Used for thousands of years.
Used for anxiet
To take a drug:*know your body, mind, source and drug.
TOBACCO: Mayans: divine incense, Turkey: 1 of 4 elements of pleasure (tobacco, opium, coffee, wine).
Nicotiana tobacum: species of tobacco for smoking & chewing products; Nicotiana rustica: less popul
Drug: A chemical agent that modifies the way that the body/brain functions.
Psychoactive Drug: Neurotransmitters in the brainherbal or synthetic molecules.
It has both positive and negative effects. Ex. Caffeine helps you stay awake but then