High blood pressure can lead to a faster heart rate. There are several main reasons why hypertension leads to rapid heart rate. 1. The large secretion of norepinephrine, epinephrine, and dopamine makes the sympathetic nervous system hyperactive, and the plasma catecholamine concentration increases, which makes the heart rate faster and the blood pressure higher. 2. In patients with long-term hypertension, cardiac afterload increases, catecholamine and angiotensin II secretion increases, heart rate accelerates, cardiomyocytes hypertrophy, interstitial fibrosis. 3. Long-term hypertension, ischemia of the brain and kidneys and other organs reflexively causes the heart to increase its pumping capacity and accelerate the heart rate. When hypertension is combined with accelerated heart rate, beta-blockers can be taken to lower blood pressure and slow down the heart rate at the same time.