Analysis of the characteristics of hypertension in the elderly: Correct understanding and blood pressure management strategies

It's important to view hypertension in the elderly normally: Higher blood pressure generally correlates with a higher incidence and mortality rate of cardiovascular and cerebrovascular diseases.

However, a survey on hypertension in the elderly shows that among people over 80 years old, the number of those with hypertension is actually higher than those with normal blood pressure. Why is this?

Medical research indicates that most elderly people have a history of late-onset hypertension, typically developing after age 60. In terms of blood pressure type, most hypertension in the elderly involves elevated systolic blood pressure, while diastolic blood pressure is generally within the normal range—the so-called "pure systolic hypertension." The pathogenesis is mostly due to vascular aging and atherosclerosis, causing hardening of the aorta and peripheral arteries, much like a rubber hose hardens over time. This leads to a significant increase in systolic blood pressure, while diastolic blood pressure decreases, and the gap between them widens. Therefore, in addition to vascular changes caused by pathological hypertension, there are also physiological aging phenomena.

Furthermore, observations of the elderly reveal that 80%–90% are thin, even if they were slightly overweight in their youth. They tend to shrink and lose weight in old age. Furthermore, as the body ages, blood volume decreases, the heart's contractile ability declines, and blood output decreases, leading to a slight decrease in blood pressure, which is less likely to be high. Therefore, mild pseudohypertension may occur in elderly patients with hypertension (i.e., because the blood vessels harden, greater pressure is needed to flatten them, resulting in a slightly higher measured blood pressure than the true blood pressure).

Additionally, because older adults have a lower tolerance for environmental changes, their blood pressure generally fluctuates more significantly. Even minor ailments such as a cold, anger, or poor sleep can cause a noticeable rise in blood pressure.

Based on these reasons, patients with hypertension should abandon the misconception that hypertension prevents longevity. They should view hypertension in the elderly with a normal perspective, adhere to medication, and control their blood pressure within the normal range. With the right approach, they too can join the ranks of centenarians.