What is Immunity? Tips to Boost Immune System

What is Immunity

Immunity is the state of being immune from or insusceptible to a disease or the like. It is the protection against infectious disease conferred by the immune response. It includes the body’s capacity to distinguish foreign material from self, and to neutralize, eliminate, or metabolize that which is foreign.

When a foreign substance enters the body, complex chemical and mechanical activities are set into motion. These processes defend and protect the body's cells and tissues. The foreign substances are usually a protein, and called as antigen. The most common response to the antigen is the production of antibody, a protein synthesized by immune system that can help neutralize pathogens such as bacteria and viruses.. The antigen--antibody reaction is an important component of the overall immune response.

Immunity is the balanced state of the body wherein the body has adequate biological defenses to fight infection, disease, or unwanted biological invasion. It is also a state where the body has adequate tolerance to avoid allergy, and autoimmune diseases.

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