What causes high lower blood pressure?

Under normal circumstances, high diastolic blood pressure refers to elevated diastolic pressure. High diastolic pressure may be caused by intense exercise, emotional stress, atherosclerosis, myocardial infarction, cerebral infarction, and other reasons. If abnormal symptoms occur, it is recommended to seek medical attention promptly for diagnosis and treatment. The specific analysis is as follows:

1. Intense Exercise

During intense physical activity, the heart requires more oxygen and energy, which increases heart rate and blood pressure, leading to elevated diastolic pressure. In addition to high diastolic pressure, symptoms such as palpitations, rapid breathing, and muscle fatigue may also occur. Medication is usually not required; instead, appropriate rest, hydration, electrolyte replenishment, and gradual reduction in exercise intensity are recommended.

2. Emotional Stress

Emotional stress may result from personality traits, mental health conditions, lack of physical activity, or other factors. When stressed, the sympathetic nervous system becomes overactive, releasing hormones such as adrenaline that cause blood vessel constriction and increased blood pressure—particularly diastolic pressure. Other symptoms may include anxiety, insomnia, and palpitations. It's important to learn how to manage emotions effectively and use relaxation techniques such as physical exercise or talking with others.

3. Atherosclerosis

Atherosclerosis is primarily caused by abnormal blood lipids, hypertension, diabetes, genetic factors, and others. Lipid deposition and calcification within the blood vessel walls lead to thickening of the vessel wall and narrowing of the lumen, increasing vascular resistance and thereby elevating blood pressure—especially diastolic pressure. Symptoms may include chest tightness, chest pain, and leg pain. Follow medical advice and take medications such as atorvastatin calcium tablets, rosuvastatin calcium tablets, or enalapril maleate tablets for treatment.

4. Myocardial Infarction

The primary cause of myocardial infarction is coronary artery atherosclerosis, although it can occasionally result from coronary artery thrombosis, inflammation, or congenital abnormalities. Coronary artery blockage leads to ischemia and necrosis of the myocardium, impairing cardiac function and disrupting blood pressure regulation, resulting in elevated diastolic pressure. Additional symptoms include chest pain, shortness of breath, palpitations, and sweating. Under medical supervision, medications such as nitroglycerin tablets, enteric-coated aspirin tablets, and clopidogrel hydrogen sulfate tablets may be used for treatment.

5. Cerebral Infarction

Cerebral infarction is generally considered to be caused by atherosclerosis, with common risk factors including hypertension, hyperlipidemia, long-term smoking, and aging. Blockage of cerebral blood vessels leads to ischemia and necrosis of brain tissue, causing increased intracranial pressure and abnormal blood pressure regulation, resulting in elevated diastolic pressure. Other symptoms may include hemiplegia, aphasia, and impaired consciousness. Follow your doctor’s recommendations and use medications such as butylphthalide sodium chloride injection, edaravone injection, or benazepril hydrochloride tablets for treatment.

To prevent and control elevated diastolic blood pressure, it is important to maintain an appropriate level of physical activity, learn to regulate emotions, follow a healthy diet, and undergo regular physical examinations.