What causes high diastolic blood pressure?

In general, high diastolic blood pressure may be caused by factors such as aging, lack of physical activity, emotional stress, nephritis, or myocarditis. It is recommended to seek medical attention promptly, identify the underlying cause, and receive symptomatic treatment under the guidance of a qualified physician. Specific analysis is as follows:

1. Aging

With advancing age, blood vessel walls gradually lose elasticity and become hardened, which may lead to elevated diastolic blood pressure. Maintaining a healthy lifestyle—such as regular exercise, a balanced diet, and weight control—can help slow down the vascular aging process.

2. Lack of Exercise

Long-term physical inactivity may reduce metabolic rate, promote fat accumulation, increase cardiovascular strain, and thereby raise the risk of elevated diastolic blood pressure. Engaging in moderate aerobic exercise can help improve cardiopulmonary function and burn excess body fat.

3. Emotional Stress

Emotional excitement or excessive mental stress may accelerate heart rate and enhance myocardial contractility, leading to increased diastolic blood pressure. Relaxation techniques such as deep breathing, meditation, and yoga may help alleviate stress.

4. Nephritis

Nephritis is often associated with improper medication use, bacterial infection, or immune system abnormalities. Impaired kidney function may disrupt water and salt metabolism, increase cardiac workload, and contribute to elevated diastolic blood pressure. Symptoms may include reduced urine output and edema. Treatment may involve medications such as hydrochlorothiazide tablets, furosemide tablets, or compound cyclophosphamide tablets, as prescribed by a doctor.

5. Myocarditis

Myocarditis is primarily caused by viral infections and may result in damaged myocardial cells and weakened cardiac contractility, leading to elevated diastolic blood pressure. Common accompanying symptoms include fatigue and dizziness. Medications such as enalapril maleate tablets, captopril tablets, or metoprolol tartrate sustained-release tablets may be used under medical supervision.

In daily life, it is important to ensure adequate sleep, avoid staying up late, and consume plenty of fresh vegetables and fruits to obtain sufficient dietary fiber and vitamins, all of which are beneficial for overall health.