After running blood pressure is reduced, is the result of the body’s self-regulation, rest after exercise sympathetic nervous excitability decline, heart rate slows down, peripheral vasodilatation, the effective circulating blood volume is reduced, in addition to a large number of sweating will make the blood volume further reduced, these factors, the combined effect of the blood pressure will be reduced. Aerobic exercise helps to reduce blood pressure, although in the process of exercise blood pressure due to sympathetic excitation will have a certain degree of elevation, but after the exercise due to the following three reasons blood pressure will gradually decline: 1. sympathetic excitability decreases, the heart rate slows down, the output decreases; 2. exercise a large amount of blood into the lower limbs, peripheral vasodilatation; 3. exercise sweats more, the blood volume decreases. Long-term adherence to exercise can enhance cardiopulmonary function. For early hypertensive patients, doctors will suggest controlling blood pressure through aerobic exercise and dietary modifications. If the blood pressure decreases significantly after running, or if symptoms of panic and dizziness occur, you need to go to the hospital as soon as possible.