The normal heart rate is 60 to 100 beats per minute, and a higher heart rate at night than in the morning may be due to physiological factors such as strenuous exercise, drinking strong tea or coffee, or it may be due to pathological factors such as tachyarrhythmia and hyperthyroidism.
1. Physiological factors: strenuous exercise, drinking strong tea or coffee at night will cause an increase in sympathetic excitability, leading to a faster heart rate and a higher heart rate at night than in the morning.
2. Tachyarrhythmia: If the patient has an attack of tachyarrhythmia (e.g. supraventricular tachycardia) at night, the heart rate will be accelerated, and the heart rate will be higher at night than in the morning.
3. Hyperthyroidism: When the thyroid hormone level of hyperthyroidism is elevated in the body at night, it can cause an increase in sympathetic excitability, which can lead to an increase in heart rate, and the heart rate at night is higher than that in the morning.
If the heart rate is faster at night than in the morning, but does not exceed the normal range, no treatment is needed. If the heart rate at night is higher than the normal range, you should go to the regular hospital in a timely manner to clarify the cause of the disease and carry out standardized treatment under the guidance of the doctor, so as to avoid delaying the condition and causing adverse consequences.