The hormones were discovered in 1902. According to the definition of the majority of specialists are organic chemical compounds produced by certain glands and cells and having a complex and multifaceted impact on the target cell. (Target cells makes the presence of a specific protein receptor that determines their sensitivity to this hormone.) One hormone can have multiple targets, and caused them to physiological changes affect a number of body functions. Sometimes hormones act together: the effect of one depends on the presence of another.
Hormonal balance in the body affects the sharpness of mind and physical mobility, determines our body type and height, tone of voice, sex drive and behavior . Due to the endocrine system, people can adapt to strong temperature fluctuations, surplus or shortage of food, physical and emotional stress.
The hormones are humoral (blood-borne) controls almost all biological processes in the body. It is now known for more than 80 different hormones. Most of them can not be postponed, or stock up in the body, so the production of hormones by time. The number of biologically active substances produced by endocrine glands, depending on age, mental and physical condition of man, as well as time of day and environmental influences.
Increase or decrease the production of hormones with respect to the norm, as well as changes in the sensitivity of hormone receptors and transport of hormones violation leads to various diseases, the study and treatment which is engaged in endocrinology.
The main factor controlling the level of a hormone in the blood, is the speed of its admission into the bloodstream. Sometimes the production of hormones is controlled by the substrate, the level of which they regulate. In most cases, the products affected by the hormone is not one, but several stimuli, although some of them play a leading role. Often hormones are factors that impede on the basis of feedback for their products. As noted above, the level of production in the body of a particular hormone is influenced by all of its systems.
A healthy body - is primarily a strict hormonal balance , no-frills and disadvantages. Disturbances in this balance are manifested in different ways.
The lack of the hormone in the body can be caused by hypofunction of endocrine glands , tumors, infections, injuries, heart attacks, autoimmune processes. Of great importance is the factor of heredity. The excess of the hormone occurs when hyperfunction of endocrine glands, hormone production by other tissues (usually malignant degeneration), while increasing the production of the hormone from the tissue of his predecessor.Sometimes an excess of the hormone observed during hormonal therapy.
It also happens that the body tissues do not respond properly to normal or increased amounts of the hormone in the blood. In this case we speak of resistance (immunity) of tissues to the hormone.Among the main causes of this disease include heredity, defective tissue receptors and the appearance of antibodies to hormones.
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