A strong heartbeat after waking up can happen to many people, and it is usually seen as a result of plant nervous disorder or excessive heart fire, etc. In addition, once you wake up, the body will automatically activate the emergency mechanism, resulting in sudden or transient tachycardia. Once this happens, the first thing to do is to go to the hospital for an electrocardiogram to rule out organic causes such as hypertension, heart disease, and so on. If organic causes are ruled out, it may be physiological factors, such as just waking up and recovering emotionally, which may cause this condition. In addition, do not exclude the cause of plant nerve disorders. You can take glutathione or vitamin B12 to nourish the nerves.