Development of fatty plaque is due partly to excessive intake of cholesterol and animal fats in the diet (see Nutrition, Human). A sedentary life-style is thought to promote atherosclerosis, and evidence suggests that physical exercise may help prevent heart disease (see Physical Fitness). A striving, perfectionist temperament referred to as Type A personality has also been associated with increased risk of heart attacks (see Stress-Related Disorders), as has cigarette smoking. The occurrence of the heart …
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