What are the reasons for a drop in blood pressure after breakfast?

Blood pressure drop after breakfast may involve various causes. In general, it could be triggered by excessive vagus nerve activation, medication side effects, overreaction of insulin, gastric ulcer, or valvular heart disease. For different underlying causes, targeted treatment under a doctor's guidance is necessary. It is recommended to seek medical attention promptly for early management of discomfort symptoms. Specific analysis is as follows:

1. Excessive vagus nerve activation: After eating, the vagus nerve is stimulated, leading to slowed heart rate and blood vessel dilation, which results in lowered blood pressure. This may be accompanied by symptoms such as dizziness, hypotension, and palpitations. It is advised to avoid large portion meals and eat slowly.

2. Medication side effects: Certain medications, such as antihypertensive drugs, may cause excessive postprandial blood pressure reduction, along with symptoms like dizziness, weakness, and fatigue. It is recommended to adjust dosage or switch medications under a doctor’s supervision.

3. Excessive insulin response: After eating, the body releases insulin to lower blood glucose levels. However, an exaggerated insulin response may lead to decreased blood pressure, accompanied by symptoms such as dizziness, weakness, and sweating. It is advisable to eat smaller, more frequent meals and reduce intake of high-sugar and high-carbohydrate foods.

4. Gastric ulcer: When a gastric ulcer causes bleeding and blood enters the abdominal cavity, hemoglobin binds with oxygen, potentially causing a drop in blood pressure. This may be accompanied by stomach pain, nausea, and vomiting. Under medical guidance, patients may use medications such as esomeprazole magnesium enteric-coated tablets, rebamipide sodium enteric-coated tablets, or lansoprazole tablets to relieve symptoms.

5. Valvular heart disease: Abnormal opening or closing of heart valves in valvular heart disease reduces the amount of blood pumped into the aorta during cardiac contraction, resulting in low blood pressure. Symptoms may include chest pain, shortness of breath, and palpitations. Treatment may require hospitalization at an accredited medical facility, possibly involving surgical valve replacement.

In daily life, maintaining a balanced diet, drinking sufficient water, and keeping regular作息 (sleep-wake cycles) can help regulate overall health and prevent discomfort.