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- $Unique_ID{BRK01324}
- $Pretitle{}
- $Title{Have You Ever Heard of an "Adrenaline Rush"?}
- $Subject{stress adrenaline rush ill defined symptoms symptom endocrine glands
- metabolism superhuman epinephrine norepinephrine sympathetic nervous system
- hormones adrenal gland catecholamines stressful behavior behaviors stresses
- rushes hormone}
- $Volume{N-23, C-23}
- $Log{
- Location and Function of the Endocrine Glands*0002901.scf
- The Adrenal Glands*0002906.scf}
-
- Copyright (c) 1991-92,1993 Tribune Media Services, Inc.
-
-
- Have You Ever Heard of an "Adrenaline Rush"?
-
-
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-
- QUESTION: In a discussion that was about the way people felt under various
- circumstances, our friend told of the ability of some individuals to act in
- superhuman ways. He said it was due to the effects of an "adrenaline rush".
- Have you ever heard of this and just what is it?
-
- ------------------------------------------------------------------------------
-
- ANSWER: The so-called "adrenaline rush" is actually the release of two
- hormones, epinephrine and norepinephrine, into the bloodstream as part of the
- body's response to stress or a response to the stimulation of the sympathetic
- nervous system.
- These hormones are produced in the adrenal glands, which are located just
- above the kidneys. The combination of about 80 percent epinephrine and 20
- percent norepinephrine are carried by way of the blood through the body and
- then act indirectly as stimulants to different organs of the body. Both
- epinephrine and norepinephrine are part of the hormone group known as
- catecholamines. One of the main functions of catecholamines is to "rev" up
- the body to cope with stressful or challenging situations. When the hormones
- reach the muscles, they alter physiological patterns to allow intense muscle
- effort.
- That's why you'll occasionally hear or read stories about seemingly
- impossible feats of strength performed by people of average strength in times
- of extreme emergency.
- Intense exercise also stimulates the release of catecholamines. The more
- stressful the exercise session, the greater the release of catecholamines.
- Constant release of catecholamines due to any kind of stress, whether physical
- or emotional, may wear on the body, increasing the heart rate and strength of
- contraction. Mild exercise on the other hand has a calming effect, because
- mild exercise increases metabolism to burn up excess catecholamines. This is
- why it is important to have a "cool-down" period after strenuous exercise to
- use up the excess catecholamines. Without the cool-down, the chronic release
- of catecholamines can negatively affect the body, increasing the risk of
- coronary artery diseases, hypertension and ulcers.
-
- ----------------
-
- The material contained here is "FOR INFORMATION ONLY" and should not replace
- the counsel and advice of your personal physician. Promptly consulting your
- doctor is the best path to a quick and successful resolution of any medical
- problem.
-