What atmospheric pressure is considered normal for humans and why

About one-third of the world’s population is sensitive to environmental changes. Most of the health effect atmospheric pressure – the attraction of the air masses to the Ground. What atmospheric pressure is considered normal for a human it depends on the area in which he resides for the majority of the time. Each comfortable will seem familiar to the conditions.

What is the atmospheric pressure

Planet encircles the air mass, which under the influence of gravity exerts on any object, including the human body. Force is called atmospheric pressure. On every square meter of pressure the column of air weighing about 100000 kg. Measurement of atmospheric pressure by a special device – the barometer. Is measured in Pascals, millimeters of mercury, millibar, millibars, atmospheres.

The normal atmospheric pressure is 760 mm Hg. article, or 101 325 PA. The discovery of the phenomenon belongs to the famous physicist Blaise Pascal. The scientist has formulated a law: at the same distance from the center of the earth (it doesn’t matter, in the air, on the bottom) the absolute pressure will be the same. He first proposed to measure the height method of barometric leveling.

Norm atmospheric pressure by region

To know what the atmospheric pressure is considered normal for a healthy person, it is impossible – there is no definite answer. In different regions of the globe, the impact varies. Within a relatively small area, this value may differ considerably. For example, in Central Asia these are slightly higher numbers (on average 715-730 mm Hg. calendar). For Central Russia at normal atmospheric pressure is equal 730-770 mmHg. article

Indicators related to the elevation of the surface above sea level, wind direction, humidity and ambient temperature. Warm air weighs less than cold. Over the area with high temperature or humidity, the compression of the atmosphere is always less. People living in mountainous regions, is not sensitive to such indicators of the barometer. Their bodies were formed under these conditions, and all the organs have undergone adaptation.

How pressure affects people

The perfect is the value of 760 mm Hg. article What awaits when the oscillations of the mercury column:

  1. The optimal performance (up to 10 mm/h) is already leading to deterioration of health.
  2. Due to the significant increase, decrease (on average 1 mm/h), even in healthy people there is a significant deterioration of health. There is a headache, nausea, loss of efficiency.

Meteopathy

Sensitivity to weather conditions – the change of wind, storms Geomagnetism – called meteosensitivity. The influence of atmospheric pressure on blood pressure of a person still not fully understood. It is known that when weather conditions change creates internal stress within the vessels and cavities of the body. Meteopathy can be expressed:

  • irritability;
  • the pain of various localization;
  • exacerbation of chronic diseases;
  • General deterioration of health;
  • problems with blood vessels.

In most cases, from meteodependent people suffering with the following diseases:

  • atherosclerosis;
  • respiratory illness;
  • the metabolic disorders;
  • Hypo — and hypertension.

Response to increased pressure

The decline in the barometer at least 10 units (770 mm Hg. art. and above) has a negative impact on health. Particularly affected by weather changes, people with long-standing diseases of the cardiovascular and digestive systems. Physicians in these days to reduce the physical load, less to go outside, do not abuse heavy food and alcohol. Among the major reactions:

  • hypotension;
  • the feeling of fullness of the auditory passage;
  • the decrease in the number of leukocytes in the blood;
  • the decreased activity of intestinal peristalsis;
  • impair the functionality of the cardiovascular system;
  • weak ability to concentrate.

Reaction to low atmospheric pressure

Lowering the compression of the atmosphere to 740 mm and less causes opposite shifts in the body. The basis of all adverse changes is oxygen starvation. Creates a negative air pressure, low percentage of oxygen molecules: becomes harder to breathe. Arise:

  • hypertension;
  • heart problems;
  • the increase of leukocytes;
  • migraine;
  • shortness of breath;
  • the amplification of the pulse;
  • the loss of strength.

Video about atmospheric pressure and its effect on human

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