Doctor, I wake up in the middle of the night with palpitations.

There are many reasons for waking up suddenly in the middle of the night. First of all, we should consider whether it is a symptom caused by calcium deficiency, which is related to improper diet and bad eating habits. Secondly, there is the possibility of myocardial ischemia. Suggestions: daily attention to diet rationality, strengthen nutritional intake, and go to the hospital cardiology department if necessary to find out the cause.