Serotonin is called happiness hormone though this substance plays a hormone role, only when gets to blood, in a brain it has functions of a neurotransmitter – the conductor which participates in transformation of the signals sent from one part of a brain to another. Serotonin is responsible for social behavior of the person, for his mood (including for feeling of happiness), for a libido, appetite.
Instruction
1. Neurotransmitters are the biologically active agents consisting of certain chemical elements which participate in momentum transfer from nervous cells of a brain to other parts of a body or sites of a brain. Serotonin also concerns them – it directs certain information to different sites of a brain, regulating various fields of activity.
2. This substance in a human body from amino acid tryptophane which gets together with food and is soaked up in blood from digestive tract is produced. In a brain of the person there is a special department – a so-called pineal gland in which of tryptophane neurotransmitters are synthesized. When serotonin gets to blood, it performs hormone functions, that is takes part in many physiological processes of an organism proceeding in different bodies and systems.
3. As the neurotransmitter, serotonin is responsible for work of nervous cages in a brain which regulate mood, memory, a dream, appetite, a libido, social behavior of the person. First of all the amount of this substance influences mood for what he was nicknamed happiness hormone. At a lack of serotonin the level of uneasiness and irritability increases, at normal development the good mood is observed, life seems nasyshchenny, stresses are transferred better. It is possible to explain with active synthesis of serotonin sharp increase in mood after the eaten chocolate: glucose promotes production of insulin which increases tryptophane level in blood in comparison with other amino acids because of what serotonin begins to be produced more actively.
4. Serotonin regulates work of nervous cages which are responsible for body temperature, he participates in activity of nervous system and thyroid gland. Serotonin is very important during feeding of children a breast as it takes part also in development of milk. Besides, he is responsible for the correct course of process of childbirth and reduction of a uterus. Serotonin influences an endocrine system, takes some part in muscle work, stimulates muscles of airways and intestines, providing normal intestinal passability. At the normal level of serotonin of people it is capable to endure rather easily pain, at a shortcoming the painful system becomes more sensitive. Serotonin participates in synthesis of hormones in a hypophysis: under its action prolactin, tireotropny hormone and other substances are produced.