What causes a sudden rapid heartbeat around 4 a.m., and what should I do?
Jun 04, 2023
Source: Cainiu Health
Dr. Tian Hongbo
Introduction
The sudden pounding heartbeat around four o'clock in the morning may be caused by physiological factors, hyperthyroidism, heart valve disease, or other reasons. This condition can be improved through general treatments or medication. During sleep, if one experiences vivid dreams and heightened emotions in the dream, it may increase cortical excitability, leading to a faster heartbeat and sudden awakening.
A sudden rapid heartbeat around 4 a.m. may be caused by physiological factors, hyperthyroidism, valvular heart disease, or other reasons. This condition can be improved through general treatments or medication.
1. Physiological Factors
During sleep, dreaming—especially when associated with intense emotions—can increase cortical excitability, leading to a faster heartbeat and possibly causing one to wake up suddenly.
2. Hyperthyroidism
Hyperthyroidism is a condition caused by excessive production of thyroid hormones. These hormones can affect the heart's contraction and relaxation, resulting in an increased heart rate. Patients may take medications such as propylthiouracil tablets or enteric-coated propylthiouracil capsules under medical supervision.
3. Valvular Heart Disease
Valvular heart disease refers to conditions in which the heart valves are damaged due to degenerative changes, infections, or other causes. When valve function is impaired, it may lead to irregular or accelerated heartbeats. Under a doctor's guidance, patients may use medications such as warfarin sodium tablets or furosemide tablets to relieve symptoms.
In addition to the above causes, a rapid heartbeat could also result from infective endocarditis, pulmonary heart disease, cardiac tumors, or other conditions. If physical discomfort occurs, prompt medical evaluation is recommended, including necessary diagnostic tests, followed by targeted treatment based on the underlying cause.
