a: allergy ~
b: heat being added to water
What:
"Allergy is like heat being added to water. You can add a certain amount of histamine release from the mast cell system and the body can absorb it and control it - just like heat can be added to water and nothing happens. But sooner or later the water is going to boil, and that's equivalent to an anaphylactic [severe, potentially life-threatening] reaction. Everybody has a different threshold."
Useful?
Writer: Dr. Thomas F. Johnson
LCC:
Where:
Date: Feb 28 2017 5:58 PM
# 10998 Critique Analogy