Blood pressure is elevated after activity, related to sympathetic excitation, increased cardiac output, and generally blood pressure is at a normal high value, and can fall on its own after appropriate rest. Research has shown that blood pressure usually rises, not falls, after human activity. Mainly because of the activity of the sympathetic nervous system to a certain extent will be excited, so that the heart is in a state of high load, thus increasing the cardiac output, so there will be a rise in blood pressure, is a normal physiological phenomenon, but may appear shortness of breath, heart rate accelerated and other symptoms. Secondly, generally after exercise blood pressure rise will reach the normal high value, that is, systolic blood pressure 120~139mmHg, or diastolic blood pressure 80~89mmHg, timely rest for a period of time after the blood pressure can fall to the normal range, that is, the diastolic blood pressure is less than 120mmHg, and the diastolic blood pressure is less than 80mmHg. To summarize, there is no need to worry too much about high blood pressure after exercise. If your blood pressure does not drop after resting for a while, you should go to the hospital in time.