After running at night, fast heartbeat and dry mouth may be a normal physiological phenomenon after exercise; it may also be caused by hypoglycemia, cardiac arrhythmia and other diseases, and you should consult a doctor to find out the reason.
1. Physiological reasons: after running a lot of sweat, if you do not replenish water in a timely manner, can lead to dehydration; exercise leads to an increase in body oxygen consumption, sympathetic nerve excitement, so the heart rate accelerated, this state can last for a period of time, resulting in a fast heartbeat and dry mouth at night.
2. Hypoglycemia: Exercise consumes a lot of energy, and the night is longer from the dinner time, the patient’s blood sugar level may be at a lower level leading to hypoglycemia, hypoglycemia can make the sympathetic nervous excitability increase, causing heartbeat to accelerate, respiratory rate to increase, which can lead to the symptoms of dry mouth and heart panic.
3. Arrhythmia: Tachyarrhythmias such as paroxysmal supraventricular tachycardia can lead to tachycardia, which can cause chest tightness and other discomfort, resulting in increased respiratory rate leading to dry mouth.
If there is no discomfort during the rest of the day, it can be observed and running at night should be avoided so as not to cause discomfort again; if the discomfort is severe or occurs at other times, it is necessary to consult a doctor in time to find out the cause of the disease and carry out the treatment after eliminating the physiological factors.