Measuring blood pressure immediately after taking a shower can be inaccurate and requires sitting still for fifteen minutes before measurement. Standard blood pressure is divided into normal high and ideal blood pressure. Normal high is defined as blood pressure below 139/90 mmHg, and ideal blood pressure is defined as 120/80 mmHg. As long as blood pressure is below normal high, it can be considered as normal blood pressure. Blood pressure that is too high or too low can have adverse effects on the body, so it is important to monitor blood pressure regularly. If the blood pressure is too low, you need to give symptomatic treatment such as rehydration and pressure boosting, and actively look for the cause of low blood pressure and treat the original disease; if the blood pressure is too high, you should take antihypertensive drugs in time, pay attention to rest, eat more fresh vegetables and fruits, choose vegetables rich in crude fiber such as celery and rape, choose fruits rich in vitamin C such as oranges and kiwis, exercise in moderation, and keep your mood relaxed.