Why the body can increase blood pressure (a little physiology).

The human body can be considered a complex system that actively interacts with the environment. The body has two main tasks, not counting other, minor tasks, these are: to survive as an individual and to produce offspring. This article will focus more on the connection with the first task: “to survive as an individual”. The body has to adapt to the environment all the time. And yet, there are processes in the body that must have certain parameters. That is, the values of certain parameters should not go beyond certain indicators. For example, the level of glucose in the blood. Now let’s ask ourselves a number of questions. Why does the body decide to raise blood pressure at a certain point? Is the body trying to normalize some blood parameters by increasing pressure? What is blood in a metaphorical sense? Blood is transport. It always carries something: it brings what is needed to the organs and takes away what is used from the organ. A number of studies show that the body’s organs are most sensitive to such a blood parameter as: the amount of oxygen delivered to the organ per unit of time (if expressed more academically: the volume of oxygen per gram (or milliliter) of the organ per minute). In turn, among the organs there are those that are most demanding of the level of oxygen in the blood. These include: the brain, kidneys, thyroid gland and others. So, if, say, the brain for one reason or another (this can be compression of the artery from the outside or partial blockage of the artery by an atherosclerotic plaque) does not receive the required amount of oxygen, then it is quite possible that the body increases blood pressure in order to thereby deliver the required amount of oxygen to the brain. In general, there is something to think about.