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Why are older people more likely to get coronary heart disease?

The prevalence of coronary heart disease (CHD) rises significantly with age, affecting over 75% of Americans aged 60-79, and even higher rates in those over 80. This increased vulnerability is not simply a matter of time but involves a complex interplay of age-related physiological changes and compounding health factors, which answers the question: **why are older people more likely to get coronary heart disease?**.