# data[].attributes.body
is a body system with a complex metwork of cells and proteins that defends the body against infectious disease and any other harmful foreign entities.

Do note that the immune system works alongside many other body systems, including the integumentary system, circulatory system, and the lymphatic system.

# data[].attributes.body
Cells that are tasked to fight against pathogens and other foreign cells. There are many types of leukocytes, including granulocytes, monocytes, and lymphocytes. These cells are produced in the bone marrow and stored in either the blood or lymph tissues.

# data[].attributes.body
A. The Skin
- directlt prevents entry of foreign/harmful substance
B. Inflamatory Response
- certain immune cells quickly reacts to damaged area throughout the body, causing symptoms such as swellings, redness, pain, and warmth
C. Immune Response
- *see box below*

# data[].attributes.body
Antibodies are Y-shape proteins produce to fight against a specific antigen.
Antigens are molecules that elicit the immune response.

# data[].attributes.body
A group of 20 plasma proteins functions to "complement" (or enchance) the innate immune response. It is activated mainly through three pathways: classical, alternative, or lectin.

# data[].attributes.body
A body system containing tissues and organs designed to eliminate toxins, waste, and unwanted materials from the body. It also functions to transport lymph, a fluid containing white blood cells, namely lymphocytes (T-cells and B-cells).

Major organs in this sytsm includes: tonsils, bone marrow, lymph nodes, spleen, etc.

# data[].attributes.body
The state in which the immune system's ability to fight against disease/cancer is compromised or completely absent, which makes the body more susceptible to get infected.

Being immunodeficient could either occur once you are born (primary/congenital) or obtained later in life (secondary/acquired).

# data[].attributes.body
Being born with certain genes may cause the immune system to react with certain substances in the environment, that are known to be harmless, differently. These substances are called allergens, which can heighten the defense response.

Three common overactivities in the immune system are: asthma, eczema, and allergic rhinitis.

# data[].attributes.body
Autoimmune disease is a condition where the immune system mistakenly attack the normal healthy body. There are many forms of autoimmune diseases, such as type 1 diabetes, lupus, and rheumatoid arthritis.

# data[].attributes.body
AIDS is a deadly form of immunodeficiency caused by the HIV retrovirus. The virus, transmitted via unprotected sex or contaminated needles, transcribes its genes in the nucleus of CD4+ cells and multiplies in order to kill the cells off quickly. HIV infection has three main stages (from least to most severe): acute HIV infection, to chronic infection, to AIDS, if left untreated.

# data[].attributes.attachment_link.title
HIV & AIDS - signs, symptoms, transmission, causes & pathology

# data[].attributes.headline
How the immune system works? (immune response)

# data[].attributes.subject
How the immune system works? (immune response)

# data[].attributes.body
White blood cells scan for disease-causing organisms called pathogens by travelling across the bood vessels and the lymphatic system using antigens for cues. Once the pathogens are found, certain WBCs called phagocytes trigger the immune response by sending macrophages to the bloodstream, destroying the pathogens, and sending signals to other WBCs called lymphocytes to clean up any remaining pathogens. Certain lymphocytes like T-cells kill off the remaining pathogens, while B-cells and helper T-cells produce antigens produce antibodies to fight foreign cells.

# data[].attributes.attachment_link.title
How does your immune system work? - Emma Bryce

# data[].attributes.attachment_link.readable_text
Your immune system is your body's defense against infections and other harmful invaders. Without it, you would constantly get sick from bacteria or viruses.

Your immune system is made up of special cells, tissues, and organs that work together to protect you.

The lymph, or lymphatic, system is a major part of the immune system. It's a network of lymph nodes and vessels. Lymphatic vessels are thin tubes that branch, like blood vessels, throughout the body. They carry a clear fluid called lymph. Lymph contains tissue fluid, waste products, and immune system cells. Lymph nodes are small, bean-shaped clumps of immune system cells that are connected by lymphatic vessels. They contain white blood cells that trap viruses, bacteria, and other invaders, including cancer cells.

White blood cells are the cells of the immune system. They are made in one of your lymph organs, the bone marrow. Other lymph organs include the spleen and thymus.

What can go wrong with your immune system?

When your immune system doesn't work the way it should, it is called an immune system disorder. You may:

Be born with a weak immune system. This is called primary immune deficiency.

Get a disease that weakens your immune system. This is called acquired immune deficiency.

Have an immune system that is too active. This may happen with an allergic reaction.

Have an immune system that turns against you. This is called autoimmune disease.

Immune system disorders

Here are some common examples:

Severe combined immunodeficiency (SCID). This is an example of an immune deficiency that is present at birth. Children are in constant danger of infections from bacteria, viruses, and fungi. This disorder is sometimes called "bubble boy disease." In the 1970s, a boy had to live in a sterile environment inside a plastic bubble. Children with SCID are missing important white blood cells.

Temporary acquired immune deficiencies. Your immune system can be weakened by certain medicines, for example. This can happen to people on chemotherapy or other drugs used to treat cancer. It can also happen to people following organ transplants who take medicine to prevent organ rejection. Also, infections like the flu virus, mono (mononucleosis), and measles can weaken the immune system for a brief time. Your immune system can also be weakened by smoking, alcohol, and poor nutrition.

AIDS. HIV, which causes AIDS, is an acquired viral infection that destroys important white blood cells and weakens the immune system. People with HIV/AIDS become seriously ill with infections that most people can fight off. These infections are called "opportunistic infections" because they take advantage of weak immune systems.

An overactive immune system

If you are born with certain genes, your immune system may react to substances in the environment that are normally harmless. These substances are called allergens. Having an allergic reaction is the most common example of an overactive immune system. Dust, mold, pollen, and foods are examples of allergens.

Some conditions caused by an overactive immune system are:

Asthma. The response in your lungs can cause coughing, wheezing, and trouble breathing. Asthma can be triggered by common allergens like dust or pollen or by an irritant like tobacco smoke.

Eczema. An allergen causes an itchy rash known as atopic dermatitis.

Allergic rhinitis. Sneezing, a runny nose, sniffling, and swelling of your nasal passages from indoor allergens like dust and pets or outdoor allergens like pollens or molds.

Autoimmune disease

In autoimmune diseases, the body attacks normal, healthy tissues. The cause is unknown. It is probably a combination of a person's genes and something in the environment that triggers those genes.

Three common autoimmune diseases are:

Type 1 diabetes. The immune system attacks the cells in the pancreas that make insulin. Insulin removes sugar from the blood to use as energy.

Rheumatoid arthritis. This type of arthritis causes swelling and deformities of the joints. An auto-antibody called rheumatoid factor is in the blood of some people with rheumatoid arthritis.

Lupus. This disease that attacks body tissues, including the lungs, kidneys, and skin. Many types of auto-antibodies are found in the blood of people with lupus.

No one knows exactly what causes autoimmune diseases, but many factors seem to be involved. If you have an immune system disorder, learn as much as you can about it. And work closely with your healthcare providers to manage it.

# data[].attributes.attachment_link.description
When your immune system doesn't work the way it should, it is called an immune system disorder.

# data[].attributes.attachment_link.title
Immune System, Part 1: Crash Course Anatomy & Physiology #45

# data[].attributes.attachment_link.title
Immune System, Part 2: Crash Course Anatomy & Physiology #46

# data[].attributes.attachment_link.title
Immune System, Part 3: Crash Course Anatomy & Physiology #47

# data[].attributes.body
Natural Ways:
1. Eat a healthy balanced meal, with plenty of fruits, vegetables, and grains.
2. Exercise regularly at least for 30 minutes
3. Drink plenty of water
4. Get plenty of sleep
5. Minize stress

Please remember to also keep up with medical check-ups and practice the recommendation of your physician. Lastly, remember to keep up with your vaccinations