The normal adult resting heart rate is 60-100 beats per minute, while walking at a fast pace the heart rate can reach between 100-120 beats per minute, this time will feel panic and even shortness of breath, chest tightness, which is a normal physiological reaction and does not require special treatment. Generally speaking, if the heart rate exceeds 150 beats per minute, it may be abnormal and needs to be further analyzed by a doctor. In normal people, the heart rate is fast during the day or after activity, and slow during sleep or at rest, which is a normal physiological phenomenon. Pathological phenomena such as fever, heart attack, or hyperthyroidism may cause a rapid heart rate, and medication is needed to lower the heart rate, such as beta blockers, to prevent the heart from beating too fast to increase myocardial oxygen consumption.