Important Note ! Our Forum Website Link has changed to And our main domain remains which provides daily unique quality contents. This became necessary so as to serve our website members and visitors better. Thank You ! Corona Virus safety tips from From Admin!! 1. Wash your hands always with running water 2. Donít cough in your hands 3. Avoid crowd 4. Keep distance from people 5. Stay at home if necessary !! Stay safe !! Stay healthy !! Click Here To Last longer In Bed[Stay amused>>>Donít be a one minute Foul]>>> Love need Tips-See how Here

Author Topic: The Human Immune System: The Body's Defense Against Disease  (Read 7536 times)

0 Members and 1 Guest are viewing this topic.


  • Global Moderator
  • Sr. Member
  • *****
  • Posts: 493
  • Karma: +0/-0
    • View Profile

It is the most basic instinct of any living thing to fight to survive. It is for this same reason why the history of mankind has been constantly marked by various armed battles. Disputes arise because of conflicts between ideologies and religion.  The desire to acquire others' resources and dominate other territories have spawned wars.  Since the beginning of time, man has not experienced a respite from bitter struggles that have brought terrible death and destruction.

In a smaller scale, another battle rages on.  Bacteria, viruses and other molecular elements can be seen as parties in conflict inside the new battlefield --- the human body.  People are already familiar with the methodology of warfare maybe because it has been frequently taught in history classes and shown in movies. However, maybe only a few are aware of how this same process occurs within the human body.
In this case, a person's body is considered the territory with all its abundant resources. The division that protects the territory, just like the armed forces in different countries, is called the immune system. If the armed forces makes use of a group of people and weaponry for defense, the immune system also has its group of cells and chemicals.  As a systemic and carefully organized scheme is needed in fighting in order to win, the protecting system of the human body also makes use of what seems to be a well-planned strategy. Like any other system, however, human immunity also has its weaknesses and imperfections.

The immune system is created to protect the body from dangerous intruders called pathogens. A pathogen, upon invasion of the territory, will seek to utilize its resources in order to survive. The survival of the pathogen within the body results to infections. The type of infection that develops corresponds to the kind of pathogen that has formed it. It can either be a viral infection such as in common colds, a bacterial infection like cholera, a fungal infection such as candidiasis (yeast infection) or a parasitic infection like malaria. Either way, infections cause diseases that are detrimental people and may further lead to their death. However, the human body, just like any other territory, will not just stand by during the invasion. Upon detection of intruders, its immune system will automatically react with the similar instinct to survive.

Coded instructions within cells and other substances enable a strategically implemented process of   protection. When pathogens enter the initial barrier of the body, they instantly harm the cells that they come upon. As the cells are injured or infected, it instantly releases eicosanoids and cytokins. These two serve as signals that will cause further reaction within the immune system. Eicosanoids cause the blood vessels to dilate so that the blood will rush in to the area and it also attracts white blood cells to respond. The increased blood flow results to inflammation which is characterized by redness and and swelling. Cytokins on the other hand help in the communication between white blood cells that will eliminate the pathogen, attract more immune cells like killer T-cells and promote healing of the area damaged by pathogens. This mechanism of the immune system, however, as said earlier has its weaknesses and imperfections.

Some pathogens, being more complicated to destroy, sometimes have better chances of survival and to proliferate. When a human's immune system is not anymore able to fight, external help is already needed such as antibiotics. Several antibiotics, however, are not 100% efficient and leave some bacteria to survive. These remaining bacteria often develop antibiotic resistance, particularly to those that have already been used against them and can cause a more dangerous health problem. Newer antibiotics are then necessary in these situations.


Simple Steps You Can Take To Eliminate the Threat of Periodontal Disease

Started by sandra

Replies: 0
Views: 9397
Last post April 17, 2019, 07:01:06 AM
by sandra
The Effects of Smoking Leads to Death and Disease

Started by ellen

Replies: 0
Views: 9860
Last post May 13, 2019, 06:34:33 AM
by ellen
Understanding The Autoimmune Disorder Crohn's Disease

Started by john

Replies: 0
Views: 8331
Last post May 22, 2019, 06:19:48 AM
by john
Introduction to Heart Disease

Started by ellen

Replies: 0
Views: 6844
Last post November 19, 2018, 06:08:08 AM
by ellen
The Benefits of an Amino Acid Supplement In Building A Healthy Fit Body

Started by mitchelle

Replies: 0
Views: 10822
Last post January 01, 2021, 01:07:50 AM
by mitchelle