C.1.1.3 Personality can change over a long period of time (HL)
Certain personality traits can lead to increased desire to exercise (extraversion, conscientiousness), while others decrease the desire to exercise (neuroticism)
Type A: Competitive; self-critical; impatient; higher stress; hgiher sense of urgency
Type B: more relaxed; laid back.
Some traits are more at risk (negative feelings like anger/hostility)