头痛是最常见的症状,感冒、发烧、劳累甚至睡眠不足,都会引起头痛。一般情况下,头痛往往是不分时候来袭。但有一种头痛有些例外,它的发生会有规律可寻,如果患者常常在午后感觉头痛就要谨慎对待了,因为那可能是因为血压升高引起的。人体的血压有一定的特点,清晨以及上午比较平稳,一般比下午的血压低。午后,由于人体疲劳、脑力活动较多的原因,这个时候血压 Headache is the most common symptom. A cold, fever, tiredness, or even lack of sleep can cause headaches. Under normal circumstances, headaches are often hit by the times. However, there is a headache with some exceptions. It occurs regularly. If patients often feel a headache in the afternoon, they should be treated with caution because it may be caused by an increase in blood pressure. The body’s blood pressure has certain characteristics, relatively stable in the morning and morning, generally lower than the afternoon blood pressure. Afternoon, due to human fatigue, more mental activity reasons, this time the blood pressure