Hypertensive patients try not to drink coffee, for blood pressure control is very unfavorable, the main reasons are the following: First, coffee contains a lot of caffeine, itself has the effect of raising blood pressure, easy to interfere with the effect of hypertension patients taking antihypertensive drugs, affecting the control of hypertension. Second, coffee is easy to excite the heartbeat leads to higher blood pressure, heart rate increases after the heart systolic period is relatively longer, diastolic period is relatively shorter, the heart is easy to shoot more blood to the aorta caused by increased blood pressure, mainly diastolic pressure is elevated, is not conducive to blood pressure control. Third, affect sleep, many people taking coffee will lead to poor sleep, the patient’s routine is easy to be disrupted resulting in rest disorder, tension, anxiety, which is not conducive to the control of blood pressure.