Not to be confused with hemostasis. Homeostasis or homoeostasis (homeo- + -stasis) is the property of a system in which variables are regulated so that internal conditions remain stable and relatively constant. Examples of homeostasis include the regulation of temperature and the balance between acidity and alkalinity (pH). It is a process that maintains the stability of the human body's internal environment in response to changes in external conditions.
Allergies, also known as allergic diseases, are a number of conditions caused by hypersensitivity of the immune system to something in the environment that usually causes little problem in most people.
Allergen: A substance that can cause an allergic reaction. Common allergens include ragwee... Allergic reaction: The hypersensitive response of the immune system of an allergic indiv... Allergic rhinitis: Medical term for hay fever, an allergic reaction that mimics a chronic ... Allergy: A misguided reaction to foreign substances by the immune system, the body system ...