What is physiological dependance?
physiological dependance is a state of the body due to habitual drug use and which results in a withdrawal syndrome when use of the drug is reduced or stopped.
What is psychological dependance?
psychological dependance is a compulsion to continue taking a drug because its use is rewarding
What is addiction?
A disorder in which an individual takes a substance or engages in a behavior that is pleasurable but eventually becomes compulsive with harmful consequences. Marked by physiological and/or psychological dependance, tolerance or withdrawal
Tolerance
A reduction in response to a drug, so that the addicted individual needs more to get the same effect.