Friday, January 26, 2007 |
What Is Stress? |
Stress is a feeling that's created when we react to particular events. It's the body's way of rising to a challenge and preparing to meet a tough situation with focus, strength, stamina, and heightened alertness.
The events that provoke stress are called stressors, and they cover a whole range of situations - everything from outright physical danger to making a class presentation or taking a semester's worth of your toughest subject.
The human body responds to stressors by activating the nervous system and specific hormones. The hypothalamus signals the adrenal glands to produce more of the hormones adrenaline and cortisol and release them into the bloodstream. These hormones speed up heart rate, breathing rate, blood pressure, and metabolism. Blood vessels open wider to let more blood flow to large muscle groups, putting our muscles on alert. Pupils dilate to improve vision. The liver releases some of its stored glucose to increase the body's energy. And sweat is produced to cool the body. All of these physical changes prepare a person to react quickly and effectively to handle the pressure of the moment.
This natural reaction is known as the stress response. Working properly, the body's stress response enhances a person's ability to perform well under pressure. But the stress response can also cause problems when it overreacts or fails to turn off and reset itself properly. |
posted by qnoyyy @ 6:31 am |
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(jokes) : Rekaman Pembicaraan Pilot AdemAir |
"Good morning, Ladies and Gentlemen.
This is your captain speaking.
Welcoming both seated and standing passengers on board of AdemAir.
We apologize for the eight-days delay in taking off, it was due to bad
weather and some overtime I had to put in at the bakery.
This is flight 717 to Yogyakarta. Landing there is not guaranteed, but we
will end up somewhere in Central Java And, if luck is in our favor, we may
even be landing on your village!
AdemAir has an excellent safety-record. In fact, our safety standards are so
high, that even terrorists are afraid to fly with us!
It is with pleasure; I announce that, starting this year, over 30% of our
passengers have reached their destination.
If our engines are too noisy for you, on passenger request, we can arrange
to turn them off !
For our not-so-religious passengers, we are the only airline who can help
you find out if there really is a God!
We regret to inform you, that today's in-flight movie will not be shown as
we forgot to record it from the television. However, for our movie buffs, we
will be flying right next to Garuda Indonesia Airways, where their movie
will be visible from the right side of the cabin window.
There is no smoking allowed in this airplane. Any smoke you see in the cabin
is only the early warning system on the engines telling us to slow down!
In order to catch important landmarks, we try to fly as close as possible to
the ground for the best view. If however, we go a little too close, do let
us know.
Our enthusiastic co-pilot sometimes flies right through the landmark!
Kindly be seated, keep your seat in an upright position for take-off and
fasten your seat-belt. For those of you who can't find a seat-belt, kindly
fasten your own belt to the arm of your seat. And, for those of you who
can't find a seat, do not hesitate to get in touch with a stewardess who
will explain how to fasten yourself to your suitcase."
Enjoy AdemAir |
posted by qnoyyy @ 6:15 am |
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