A blood pressure of 105/70 mmHg is normal. The criteria for normal blood pressure are as follows: high pressure, i.e. systolic blood pressure, is 90-139 mmHg, and low pressure, i.e. diastolic blood pressure, is 60-89 mmHg, and blood pressures within the above ranges are considered normal blood pressures. If it exceeds or falls below this range, it is considered abnormal blood pressure. For hypertensive patients, we must pay attention to the following points: 1, low-salt, low-fat diet; 2, quit smoking and limit alcohol; 3, appropriate physical exercise to enhance physical fitness; 4, to ensure regular work and rest, do not stay up late; 5, you can eat more potassium-rich vegetables and fruits.