Sinus tachycardia. What's going on?

Sinus rhythm is the most common sinus rhythm in adults. Sinus rhythm is more than 100 beats per minute, referred to as sinus tachycardia. The common causes are as follows: Physiological factors: Sinus tachycardia can occur in healthy people when smoking, drinking, drinking coffee, physical activity and emotional excitement. In addition, fever, hyperthyroidism, anemia, shock, myocardial ischemia, heart failure and other diseases can also cause sinus rhythm. Drug factors: certain drugs, such as adrenaline, atropine, etc., can also cause sinus rhythm. Heart disease: Heart disease is one of the common causes of sinus tachycardia, such as myocarditis, cardiomyopathy, pericarditis, arrhythmia, etc. Other factors: autonomic nervous dysfunction, endocrine diseases, metabolic abnormalities, etc. can also lead to sinus tachycardia. It should be noted that for some special groups, such as athletes, the elderly, pregnant women, etc., sinus rhythm may be a normal physiological phenomenon. However, if sinus rhythm is accompanied by other symptoms, such as palpitations, dizziness, fatigue, etc., you should seek medical attention in time to clarify the cause and carry out corresponding treatment. In short, the causes of sinus tachycardia are complex and need to be analyzed according to specific circumstances. If sinus tachycardia symptoms occur, seek medical attention in time to clarify the cause and treatment.