Q: Why is blood pressure high in the early morning and then low during the rest of the day?
A: The body has a natural biologic rhythm which regulates the release of hormones and bodily functions. Because of this, blood pressure in most people starts to increase in the early morning and peaks in the late morning or early afternoon. It then gradually lowers until the cycle starts over. Throughout the cycle, blood pressure remains within the normal range for people not suffering from high blood pressure.