Stress – where it begins and what its role in human life

Организм человека – высокоорганизованная система с многочисленными внутренними связями и механизмами передачи информации от одних органов к другим. Unfortunately, the action of these mechanisms is not sufficient studied, but the problem, arising from their abuse are familiar to many.

For the modern man has become customary to use the term "stress" (From English. stress – давление, push) as an explanation for many of the negative changes in the body, dysfunctions, diseases and mental disorders. However, stress, like any other phenomenon of life, It can be viewed from different angles. Is it really bad stress itself?

Как показали исследования «первооткрывателя стресса» – австрийского (from 1931 g. – американского, and then Canadian) 20th century physiologist. T. Selye, у высших животных и у человека стресс – одно из проявлений работы системы быстрого реагирования.

Development of stress mechanism

The signal of the danger comes from one or more of the senses (hearing, sight, touch, smell, taste) or, if the person foresees the danger, directly from the brain, and numerous nerves, both wires, передается в гипоталамус – центр управления эндокринной и вегетативной нервной систем, located in the brain. "Repel the attack!» – приказ гипоталамуса с порцией гормона кортиколиберина отправляется в гипофиз – железу внутренней секреции, which is often referred to as the "orchestra conductor of the hormonal". There hastily adrenocorticotropic hormone is synthesized and transported through the bloodstream to the adrenal cortex. The adrenal glands are released into the blood dose corticosteroids: norepinephrine and epinephrine.

After a moment, it increases blood sugar levels, accelerated breakdown of glycogen (carbohydrate, whose reserves are located directly in the muscles) и жира – организму нужны силы для борьбы. Dilate bronchi, breathing quickens, the heart begins to beat faster, повышается кровяное давление – в минуту опасности организм не может себе позволить испытывать недостаток кислорода. The blood from the intestines to the muscles being transferred, движение пищи по пищеварительному тракту замедляется или приостанавливается – переваривание съеденного может подождать. All the senses are sharpened, any movement, sound, запах фиксируются мгновенно – ведь они могут быть сигналом о нападении. Arm muscles, legs and body are filled with the blood, provided with the necessary energy and tense, increases sweating, повышается свертываемость крови – на случай, If you have to fight with the hot bloodbath.

Many people, fall into extreme situations and happily survived them, note, that in times of stress their strength seemed to have multiplied several times. The stress they could do, that in normal conditions it would not be able: eg, lift something very heavy, climb to the top of the column completely smooth, jump over the pit broadest etc. and thus save their lives.

Stress and progress

Modern man is much smaller, than its prehistoric ancestors, and higher animals, It depends on the nature. With the achievements of progress, he transforms the world, gets rid of its negative impact, forming its own external environment, making it more comfortable. Serve as protection from the cold, warm clothing and a heated housing, the heat saving air conditioners, and wild animals themselves often run away from man. But the stress of not getting smaller.

Стресс – это универсальная реакция организма на опасность. And transform the world, along with all the benefits of civilization is the source of stressors (factor, causing stress). A sudden power outage, broken phone, when an urgent need to call, broke halfway machine, all hands on deck at work, конфликт в общественном транспорте – все это выводит человека из равновесия, causing a surge of adrenaline, high blood pressure and heart palpitations. The bulk of the stressors of physical moves of mental, and the reaction of the body remains the same, requiring immediate Activism. And if nothing is done, discharge voltage does not occur (or it lags), and this is detrimental to our health. Сдержанность – обязательное качество воспитанного человека – заставляет подавлять естественное желание выплеснуть свое раздражение и тем самым способствует негативным последствиям стресса.