A high pressure of 140 and a low pressure of 90, i.e. a systolic pressure of 140 mmHg and a diastolic pressure of 90 mmHg, which meets the criteria for Grade 1 hypertension, is not normal. However, if it is an occasional, transient increase in blood pressure, it may be normal and there is no need to be alarmed; regular blood pressure testing is sufficient. Normally, a systolic blood pressure of 140-159mmHg and/or a diastolic blood pressure of 90-99mmHg is classified as Grade 1 hypertension. A systolic blood pressure of 140mmHg and a diastolic blood pressure of 90mmHg are on the verge of first-degree hypertension, which is generally abnormal. 1. If the patient has primary hypertension, it is recommended that he/she improves his/her lifestyle by maintaining a low-salt and low-fat diet, eating fresh vegetables and fruits every day, reducing body weight, increasing exercise, reducing mental stress, and maintaining a balanced mind. If there is no combination of diabetes mellitus, coronary heart disease, hyperlipidemia or complications, there is no need to take antihypertensive drugs. 2. If it is secondary hypertension, such as primary aldosteronism, pheochromocytoma, renal vascular hypertension, renin secretion tumor, etc., the patient needs to actively treat the primary disease, which can be cured or improved by surgery. 3. If the blood pressure rises transiently due to emotional tension, it is not hypertension and may be normal, so pay attention to regular blood pressure testing and consult a doctor in time if there is any discomfort. It is recommended that the patient under the guidance of a doctor to standardize the treatment, not blindly use their own medication.