When Kristen began to smoke,she used only 3-5 cigarettes a day.Now,for her to feel in control during the day,she has to smoke 18 cigarettes.What is she experiencing?
A)substance abuse
B)substance dependence
C)tolerance
D)withdrawal

Question

Quizplus · Accepted Answer

Kristen is experiencing tolerance, which occurs when a person needs to use more of a substance to achieve the same effects previously achieved with smaller amounts. This is evident from her increased consumption of cigarettes from 3-5 a day to 18 a day.

When Kristen Began to Smoke,she Used Only 3-5 Cigarettes a Day.Now,for