Which aspect of the Type A behaviour pattern is most responsible for adverse physiological reactions that lead to heart disease?

A) Hostility
B) Impatience
C) Work involvement
D) Competitiveness
E) Persistence

Type A Behaviour Pattern

A personality pattern that includes aggressiveness, ambitiousness, competitiveness, hostility, impatience, and a sense of time urgency.

Physiological Reactions

Bodily responses to various stimuli, including changes in heart rate, hormone levels, or muscle tension, among others.

Adverse

Referring to conditions or situations that are unfavorable or harmful, potentially leading to negative outcomes.