What is stress



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tarix15.10.2018
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What is stress?
Stress is a reaction to situations, events or people. Some of these events stir up feelings or thoughts that cause you to take some kind of action. Stress occurs when there is a mismatch between the need for these actions and an individual’s ability (or belief in their ability) to cope with these demands.
Stress has been around for a LONG time. For primitive man simply staying alive was stressful. He didn’t know where his next meal was coming from, or whether he, himself, was going to become a meal.
Let’s backtrack several thousand years:
Imagine that you are Primitive Man. You’re hanging out in the woods, and suddenly encounter a pride of lions. THE EMERGENCY SWITCH IS TRIGGERED to prepare you to fight the lions, or to run away from the lions (flight).

This is what happens:

When your brain registers an emergency, powerful hormones associated with stress are secreted into your body. These hormones trigger the release of adrenaline. Adrenaline prepares the body for FIGHT OR FLIGHT.




  • Blood is shifted to the muscles and your skin becomes pale.

  • Your body begins to prepare itself to run, and you start to sweat and your heart rate and blood pressure rise.

  • Your body prepares itself for increased fuel demands by releasing glucose and fatty acids into the blood stream.

  • Your immune system slows down, because energy is shifted to anticipate the battle, rather than maintain health.

As we evolved, our brains evolved and we learned how to conquer those things that used to threaten our lives. This comes at a price. Because we are able to think in a complex way to solve problems, we can also imagine all kinds of threatening situations around us when there are rarely any.


Modern man feels an adrenaline rush if some idiot cuts in front of him in traffic. His muscles tense and he prepares to fight or to flee when somebody in front of him has too many items for the grocery store express line. And his blood pressure skyrockets because he can’t stand the thought of facing another day in a job he hates.
When stress is good stress, and it prepares you to meet a challenge, people feel

  • increased motivation and drive

  • a sense of challenge and excitement

  • a sense of renewed energy

  • attention to detail, accuracy

  • feelings of excitement and hope

  • increased self-confidence

The unhealthy side of stress may manifest itself in four areas. You may notice:
Changes in your body...
Short Term Physical Symptoms

These mainly occur as your body adapts to perceived physical threat, and are caused by release of adrenaline. Although you may perceive these as unpleasant and negative, they are signs that your body is ready for the explosive action that assists survival or high performance:


Faster heart beat Increased sweating

Cool skin Cold hands and feet

Rapid Breathing Tense Muscles

Dry Mouth A desire to urinate

Diarrhea 'Butterflies in stomach'
Long Term Physical Symptoms
These occur where your body has been exposed to adrenaline over a long period. One of the ways adrenaline prepares you for action is by diverting resources to the muscles from the areas of the body which carry out body maintenance. This means that if you are exposed to adrenaline for a sustained period, then your health may start to deteriorate. This may show up in the following ways:
change in appetite frequent colds

asthma digestive problems

headaches skin eruptions

sexual disorders aches and pains

feelings of intense and long-term tiredness

inflammation
Changes in your thinking...

  • trouble concentrating

  • lost self-confidence

  • lapses of memory

  • poor judgment

  • feeling pressured

Changes in your emotions...



  • resentment

  • anger and irritability

  • feeling “on edge” or agitated

  • feeling blue, down, hopeless

  • moodiness

Changes in your actions...



  • increased smoking

  • withdrawing from others

  • non-stop talking

  • fidgeting

  • absenteeism



UMass Department of Psychiatry

Health Psychology Program
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