Human blood pressure fluctuates throughout the day, characterized by two peaks and one trough. Between 6-9 am and 4-6 pm are the two peaks of blood pressure, after which the blood pressure will be in a trough at 2-3 am, so the blood pressure measured in the morning tends to be high, while that measured in the evening tends to be low. The fluctuation range of blood pressure in a day is about 20-30mmHg, patients do not need to be overly nervous. If the patient is hypertensive, it is generally recommended that the patient take long-acting antihypertensive drugs orally to ensure a smooth lowering of blood pressure, so as not to damage the arterial vasculature by excessive fluctuations in blood pressure. Generally speaking, you can choose long-acting preparations such as Bayxin Tong, Irbesartan Hydrochlorothiazide Tablets and so on.