If you change the parameters of the human environment, in this case climate changes and its thermal well-being.If any of the conditions violate the heat balance of the body, the immediate reactions occur, restore it.
thermoregulation of the human body - is a process of regulation of heat, contributing to the maintenance of a constant body temperature, which is close to 36.5 degrees.Conditions that interfere with the normal thermal regime of the man called uncomfortable.The conditions under which the body's metabolism is normal, there is no heat exchange with the tense situation, called comfortable.They also are optimal.Area, fully tapping the heat generated by the body, in which there is no voltage regulation system is a comfort zone.
There are three ways in which the body's thermoregulation:
- biochemical methods.
- change in the intensity of blood circulation.
- intensity of sweating.
In the first method, the biochemical changes the intensity of the processes of the organism.For example, when the ambient temperature decreases there is muscle tremors, which increases the heat release.Such thermoregulation of the human body called the chemical.
In the second method, the body is self-regulating blood flow, which in this case is regarded as a heat carrier.It transports the heat from the internal organs of the body to the surface.Thus there is a need to narrow or vasodilation.At high temperatures around - vessels dilate, blood flow of internal organs is enhanced, low-temperature process is reversed.The vessels are narrowed, blood flow decreases, less heat is transferred to the outside.
With decreasing temperature a decrease in heat, sweating, skin moisture, therefore, by reducing the evaporation heat of the body is reduced.Large water loss can be dangerous to humans.
In the second and third case occurs physical thermoregulation of the human body.
Climate significantly influences on the human condition, its performance.In the comfort of the living conditions and activities affect the gas composition of the air, the optimum weather conditions.Options microclimate provide heat exchange with the environment.This is the human thermoregulation.
in natural these parameters vary considerably.When they change it becomes not the same as before, and well-being.For example, the tolerance of the ambient air is dependent not only on the temperature but also the humidity, air velocity.It is proved that when the ambient temperature exceeds 25 degrees, the efficiency is reduced.And the greater the humidity, the faster the body overheating because less sweat evaporates.Highlight it exhausts the body.At the same time it loses a lot of vitamins, trace elements and minerals.
Prolonged exposure to body heat combined with high humidity the body temperature can rise to 39 degrees.This condition is called hyperthermia.It can be life-threatening.
decrease in air temperature are also a danger.They are no less dangerous than high.There is a chilling and hypothermia, called hypothermia.And as a result - cold injury.
thermoregulation of the human body comes in all ways at once.But occasionally some of them is involved less and some more.
