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The difference between Allostasis and Homeostasis
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But dont physical and psychological stress activate the same system?
They activate the Stress-Response which throws the body off an internal homeostatic balance.
What's wrong with this?
Homeostasis:
Its Allostasis (through the brain) that activates certain internal homeostatic responses to bring the body back into alignment.
But isnt it the same as homeostasis?
This definition suggests that Only the physiological systems (kidneys, liver, heart, etc.) maintain an internal stability.
It lacks to mention that which controls these systems...the Brain.
Not quite. Allostasis is about the brain coordinating all the functions that bring the body back to homeostasis under Stress.
the tendency of a system, especially the physiological system of higher animals, to maintain internal stability, owing to the coordinated response of its parts to any situation or stimulus that would tend to disturb its normal condition or function.
Allostasis
"Constancy through change"
The difference between...
aka: The ideal conditions under stress,
not just basal/environmental conditions.
Homeostasis
Allostasis
Think of Allostasis in terms of the Military as a whole
Where Homeostasis is each branch...
This way homeostasis turns on things needed and turns off the things unneeded
Who's in charge?
There are a zillion ways to reach internal homeostasis. Only an Allostatic response knows how to get there.