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Which factors increase the risk of stroke?
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human disease
The routine monitoring of blood pressure levels is an important part of assessing an individual's health. Blood pressure provides information about the amount of blood in circulation and about heart function and thus is an important indicator of disease.
A stroke occurs when blood flow to the brain is impaired, either by a blockage or hemorrhage. Several factors increase the risk of experiencing a stroke:1
- Demographic and Genetic Factors: Aging is a primary risk factor, with risk rising significantly after age 55. Men are at higher risk than women, and African Americans face a higher risk of death from stroke, largely due to a higher prevalence of hypertension. Heritable defects, such as sickle cell anemia, and specific genetic variations also increase susceptibility.1
- Lifestyle and Physiological Factors: Major contributors include hypertension, smoking, diabetes, obesity, high cholesterol, physical inactivity, and excessive alcohol consumption. Chronic stress can also elevate risk by increasing blood pressure and cholesterol levels.1
- Medical Conditions: Pre-existing heart disease, such as atrial fibrillation or damage to heart valves, can lead to blood clots that travel to the brain. Atherosclerosis, the buildup of fatty deposits in arteries, is a significant underlying cause.12
- Dietary Factors: High sodium intake is associated with increased stroke mortality, particularly in overweight individuals. Conversely, diets rich in potassium are linked to a reduced risk.3