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Immune System – What Is It and How Does It Protect You

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What is your immune system, and how does it protect you? Various studies elucidate the fact that a strong immune system combats against viruses entering the body. The immune system carries out tons of reactions and responses against the pathogens. These responses are only possible when the immune system is strong enough.

As the coronavirus is spreading like wildfire across the globe, there is a need to look for ways to minimize the risk of catching it. One of the ways to reduce the risk of viral invasion is to increase the body’s immunity. A robust immune system can work wonders when it comes to defending the body from pathogens.

The viral infections which once used to be deadly and fatal are now curable. The development of vaccines helps a lot in creating strong immunity against viruses. Be it the primitive, dangerous HIV or the prevailing contagious novel coronavirus. A strong immune system can fight off all. What is the immune system?

Thebody’sfirst line of defense against viruses, bacteria, or any foreign material is the immune system. A stronger immune system reduces the chances of infections in the body. Without a strong immune system, the human body will be more likely to get infections and diseases.

What are the basic functions of the immune system?

The first and foremost function of the immune system is, undoubtedly, protection or immunity. Immunity is basically an organism’s ability to combat viruses, bacteria, diseases, and infections without causing self-harm.

In particular, the immune system is an extensive network of organs, glands, cells, and hormones. Nevertheless, the functions that it serves are confined to the protection of the body. The functions of the immune system are as follows.

  • To guard the body against intracellular and extracellular pathogens.
  • To eliminate the chances of auto-immune diseases or self-destructive reactions.

What are the types of the immune system?

The immune system is an essential factor in safeguarding the body. There are two subtypes of the immune system that work jointly to protect the body against any apparent disease. Let’s study the two types of immune systems and discuss their working briefly.

  1. Innate Immune System:

The innate immune system is the one that is present in every single being by birth. It is also called the non-specific or general immune system. The innate immune system triggers a pathogen’s entry into the body and engulfs it with phagocytes’ help.

  1. Adaptive Immune System:

The adaptive immune system is the one that the body acquires over time. It is also called an acquired or specific immune system. The adaptive immune system develops when the body produces a defense mechanism after being exposed to a pathogen. Another way to develop the adaptive immune system is immunization, i.e., vaccination.

What is the working mechanism of the immune system?

The immune system protects the body against every pathogenic foreign material. It makes every possible effort to eradicate the pathogenic foreign substance to guard the body. It does so by producing antibodies in response to the antigens that enter the body.

As soon as the antigen enters the body, it activates a cascade of responses. The organs, cells, and chemicals of the immune system initiate to produce the defense mechanism. Here are the brief mechanisms of the cells of the immune system.

B cells or lymphocytic white blood cells secrete antibodies against the antigen that enter the body.

T cells or the T lymphocytes have two types: helper T cells and killer T cells. 

Helper T cells, as obvious by the name, help in generating a signal to trigger the destruction of the foreign body. They also produce antigen-specific responses.

Killer T cells kill viral, bacterial, and other pathogenic cells that invade the body.

Dendritic cells create a link between outer tissues and the immune cells. They present antigens to the T cells for killing. Dendritic cells are responsible for processing the antigen so they can be recognized by the immune cells.

Macrophages are the types of white blood cells that engulf or eat large or macroparticles. They digest the viral cell components or, in a broader range, every possible pathogenic material. Phagocytosis is the process by which the macrophages eat the pathogenic macromolecules.

In Conclusion:

Your immune system is a complex and vastly intricate system of interconnected parts. Once it is damaged, it’s difficult to figure out what the problem is and how to fix it. But you don’t have to worry about that. By eating a healthy diet and performing healthy activities, you prevent your immune system from breaking down.

You need a healthy immune system to fight against viruses, bacteria, yeast, and other dangerous organisms. When injured or sick, most people die because their immune system breaks down and can no longer protect them against the disease or injury.

There is a correlation between living a long life and having a healthy immune system. So, if you want to live a long healthy life, take care of your immune system with a healthy diet, quality sleep, fun activities, and exercise.