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How important role immunity plays to revive body?

Before going into the importance of the role-play of Immunity system it is important to know
What is immunity system?
What does the immunity system do?
We all fall ill sometime or the other. The questions that should be asked to ourselves are how often do I fall ill? How soon do I revive from the illness? How well is the body revival process? Am I cured completely? Your immunity system is the answer to all these questions. It helps you to avoid illness… it helps you to fight & recover from illness and it helps you to repair the side effects and damage to your biological system during and after the illness.
The immune or immunity system in the human body is a host defense system comprising many biological structures and processes within its organism to protect against disease. Our immune system is a collection of organs, special cells, and substances that help us protect from infections and some other diseases. Immune cells and the substances they make travel pass inside the body. This, in turn, protects the body from germs that cause infections. Also, in many ways, you get protection from cancer cells too. The immune system checks the substances which are found in the body. Any new substance which immune system cannot recognize is alarming for the system. This leads to an attack from the immune system side. For example, germs contain substances such as certain proteins. These are not present in the human body. The immune system sees these as “foreign” and attacks them. Hence, it is the function of the immune system to destroy anything which has foreign substance, such as germs or cancer cells.

For proper functioning, an immune system detects a wide variety of agents (known as pathogens) from viruses to parasitic worms. It distinguishes them from the organism’s own healthy tissue. In many species, including us … humans, there are two major subsystems of the immune system: the innate immune system and the adaptive immune system and both use humeral and cell-mediated immunity to perform their functions. We human beings possess the blood-brain barrier, blood-cerebrospinal fluid barrier, and similar fluid–brain barriers that separate the peripheral immune system from the neuroimmune system while protecting the brain. This simply explains how much the immunity level is important for human body survival. Maintaining two major subsystems of this immune system: the innate immune system and the adaptive immune system efficiently leads to a faster revival of healthy bodily functions. The immune system has a tougher time targeting cancer cells, though. This is because the beginning of cancer cells is when there is alteration in the body. Also. Cells start to grow out of control. The immune system many times fail to recognize cancer cells as foreign.

Clearly, you may have felt that the immune system has limitation in fighting cancer on its own. This is because many people with healthy immune systems still develop cancer. Sometimes the immune system recognizes the cancer cells. But the response is not strong enough to destroy cancer. Cancer cells themselves can also give off substances that keep the immune system in check or in a state of inactivity. To overcome this, researchers have found various methods so that the immune system is able to recognize cancer cells. Also, it leads to strengthening the response so that it is able to destroy them. These researches lead to many types of Immunotherapy.

Immunotherapy, also called biologic therapy and one of the many ways of body revival is a type of treatment that boosts the body’s natural defenses to fight viruses. It is also, in a way, adding to the maintenance of the subsystems: the innate and the adaptive immune system efficiently. Using substances made by the body or in a laboratory, it improves or restores immune system functions by:

•Stimulating the existing body immune system to work harder or smarter to attack viral cells
•Giving the immune system components externally, such as man-made immune system proteins
•Stopping or slowing the growth of virus or cancerous cells
•Preventing cancer from spreading to other parts of the body
•Improving the ability of the immune system to work better at destroying cancer cells

There are several types of immunotherapy, including:

•Monoclonal antibodies and tumor-agnostic therapies
•Non-specific immunotherapies
•Oncolytic virus therapy
•T-cell therapy
•Various vaccines

A strong and healthy Immunity system goes a long way in maintaining a disease and illness free lifestyle.