Atmospheric pressure: norm

In ancient times, people first noticed the effect of air pressure on surrounding objects and human health. Most of all, this was noticeable in natural disasters (hurricanes, storms, etc.). Until it was proven that the air has a weight, humanity could not explain at the expense of what many processes on the planet are happening, related to the weather and people's well-being. The pressure that exerts air on its weight to the Earth and everything that is on it is called atmospheric. The person does not feel the heaviness of the air, because the body is evenly distributed atmospheric pressure. The norm of such an impact is achieved by a balance between the external air pressure and the internal pressure of our body.

In international practice, atmospheric pressure is measured in pascals, millibars and millimeters of mercury. It is considered normal atmospheric pressure (760 mm Hg). The norm for a particular region may differ from other places. The atmosphere around us is a moving shell, in which daily changes occur. Adaptation of the human body to the conditions of a certain region and similar changes allows him not to feel them.

Who has been in the mountains, knows that, having crossed the line more than 2, 5 km up, unprepared for the area people will feel oxygen starvation. It is accompanied by a rapid heart rate, a drop in blood pressure and other characteristic symptoms leading to a general weakness of the body. Over time, after adaptation of the body, most of the ailments will disappear. If the process of change is slow, the human body better gets used to them.

People who live long in the mountains do not react painfully to the atmospheric pressure characteristic for these places. The norm for mountaineers is low environmental pressure.

This is due to the fact that their body developed under such atmospheric pressure, all its organs acclimatized to such conditions. Differential pressure is not only in mountain conditions and extreme situations, they are possible and in places of permanent residence of a person. The reason for such differences in atmospheric pressure is the air temperature. When increasing its air mass, like all physical quantities, it heats up. The weight of a cubic meter of warm air is less than that of a cold one, and consequently the pressure on the surface of the earth also changes.

For people with impaired health, especially for the elderly, pressure drops can be painful. In this case, you need to calm down and reduce physical stress. Even healthy people in this period feel a reduced performance, and sometimes a headache.

The state of health of a person is very influenced by atmospheric pressure. Its rate can change constantly with a sudden movement of the air mass. Warm air, rising up, and cold, going down, lead to a difference in pressure in different layers of the atmosphere. By this principle, the weather is formed in a certain area. Its formation is also affected by a number of moments associated with solar radiation, terrain relief, air humidity, wind speed, etc. These factors are the basis for creating a climate in the area.

Changes in the weather affect the human body in different ways. It is proved that almost every person reacts to them, only each in his own way. Meteosensitive people need to know what is the normal atmospheric pressure in their region to know how to help their body in a difficult period. In weather reports, every morning they report what atmospheric pressure is the norm for the region, and which day prevails on that day. This is very important for people suffering from chronic diseases.

People with diseases of the cardiovascular and nervous system are sensitive to changes in atmospheric pressure and very poorly tolerate weather changes. For them, the greatest danger is the appearance of cyclones, which are usually accompanied by a decrease in pressure, weather deterioration, strong wind and a decrease in oxygen in the atmosphere. At the same time, the temperature decreases, humidity rises, fog and precipitation appear. In this case, meteodependent people may exhibit tachycardia, a drop in blood pressure and a pulse.