In the field of biology there are general principles that affect all living beings. One of them is self-regulation. Through it reference is made to the capacity of all living beings to regulate their body temperature . The temperature of an organism depends on its input and output of heat . Thermoregulation
Homeothermic and Pecilothermic Organisms
The former are those that maintain certain levels of body temperature within constant parameters. The second ones are those that present a temperature with great variations, depending on the temperature changes that occur in the natural environment.
Another form of classification
The organisms endothermic are those that regulate body temperature by physiological processes. On the contrary, ectotherms are those that regulate their temperature using some type of strategy or behavior. Thermoregulation
Main regulatory mechanisms
Some organisms resort to loss of heat (for example, fluids are lost through perspiration on the skin and this causes a decrease in body temperature). Another mechanism is temperature preservation (eg, through vasodilation). Another form of self-regulation is vasoconstriction, through which the temperature associated with the blood is lost.
On the other hand, behavior-based mechanisms refer to the use of various heat sources that can be obtained from the environment (many animals heat up by seeking sunlight, while others avoid heat by protecting themselves underground) . Thermoregulation
Humans maintain a constant temperature ranging between 36.5 and 37.5 degrees, and when there is a change below or above this parameter, it means that there is some kind of change (for example, an infection or hypothermia).
The hypothalamus is the brain structure responsible for self-regulation. Thus, when the external environment is too hot , our body tends to reduce blood circulation. When the ambient temperature is low, the body reacts with shivering and thus generates some body heat. Thermoregulation
On the other hand, when the cold is intense, the hands and feet are the first to suffer its effects, since the hypothalamus gives the order to protect the vital organs.
For self-regulation mechanisms to work properly, we must adopt two complementary strategies:
1) wear appropriate clothing for each circumstance and
2) feed and hydrate us properly. Thermoregulation