Your mother must always have an early morning cup of coffee.She usually has several more cups throughout the day.If she misses her daily doses of coffee, she gets a headache.The fact that your mother experiences headaches when she discontinues the use of caffeine is an example of

A) physical dependence.
B) psychological dependence.
C) a circadian rhythm anomaly.
D) a hypnogogic reverie.

Physical Dependence

A physiological state of adaptation to a substance, manifested by the development of withdrawal symptoms when the substance is reduced or stopped.

Caffeine

A stimulant of the central nervous system present in coffee, tea, and various foods and drinks, known to enhance alertness and reduce fatigue.

Headache

A pain or discomfort in the head, scalp, or neck, often associated with tension, migraine, or sinus issues.