Causes of high blood pressure and fast heartbeat include overwork, high blood pressure, and arrhythmia. You can make self-adjustment, take medication and so on. 1. Excessive exertion: If you exercise too much, or encounter some fear or excitement, you will have a temporary high blood pressure and fast heartbeat. At this time there is no need for treatment, appropriate rest will be relieved. Usually should pay attention to rest, relaxation. 2. Hypertension: Generally speaking, hypertension can be diagnosed by three measurements of systolic blood pressure ≥140mmHg and/or diastolic blood pressure ≥90mmHg on non-same day. Secondary hypertension requires active treatment of the primary disease, while primary hypertension can take blood pressure-lowering drugs as prescribed by the doctor, such as captopril, spironolactone, furosemide, propranolol, metoprolol, bisoprolol, nifedipine and so on. 3. Arrhythmia: If there is no history of high blood pressure, the sudden increase in heart rate can be brought down with heart rate control drugs as prescribed by the doctor. You can apply beta-blockers, such as metoprolol and propranolol, which can both control heart rate and lower blood pressure. Drugs should be used under the guidance of a physician, high blood pressure and fast heartbeat is not good to find after rest should be timely consultation and treatment according to medical advice.