and how histamine relates to mast cell activation syndrome, or MCAS, below. Histamine is a substance that naturally occurs in ...
Mast cell activation syndrome (MCAS) is a condition in which mast cells—a type of white blood cell that plays a key role in ...
People with MCAS will need to manage their symptoms throughout ... checking for allergies" and are prepared to create histamine at a moment's notice. This is where the problem lies, as it can ...