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Getting to Know the Body's Immune System: Definition, Components, & How It Works

 The immune system is the body's defense system to protect against various bad microorganisms that cause infection or disease. This system consists of various components and the way they work is complex.” Jakarta – The body's immune system plays a crucial role in maintaining overall health by carrying out a series of defense mechanisms, such as recognizing and responding to foreign objects. The foreign objects in question are pathogens, such as bacteria, viruses, germs, parasites and fungi. Some of these pathogens cause disturbances and damage to a person's body. Want to know more about how the immune system works? Check out the following information! Understanding the Body's Immune System The immune system is the body's defense system against attacks by foreign substances. In fact, foreign substances not only come from outside the body, such as pathogens, but are also found inside the body. Foreign substances originating from within the body are dead cells or cells

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, united states- Bacteria, viruses, and germs are several types of microorganisms that cause disease in the human body. Well, to counteract it all, the body has an immune system to fight off their attacks. Not only that, the immune system is also able to ward off several types of other, more serious diseases such as hepatitis or organ infections. Unfortunately, not always the immune system can counteract it all. There are times when your immune system is weak so you will easily get sick and make your body feel unfit.

In order to avoid disease attacks, whether it's a mild illness or even a severe one, you must know the causes of a weak immune system. Causes of weak immune disease, among others:

1. Lack of exercise

One of the causes of weak immunity is a lack of physical activity such as sports. According to a study, it is also stated that regular exercise can help the function of neutrophils, namely a type of white blood cell that kills disease-causing microorganisms that can endanger health.

2. Consuming less nutritious food

This is what makes consumption of balanced nutritious food a must-do thing every day. Because if one of the nutrients is not fulfilled, then the immune system will weaken. Foods that can keep the immune system awake include fruits, vegetables , and whole grain sources that help support the immune system by providing vitamins, minerals, phytochemicals, and most importantly, antioxidants.
Apart from that, you must also avoid certain types of food, such as those that contain fat or oily food because the saturated fat in them can make your immune system weak. If you are a person who has a fairly busy schedule, you can also work around this by taking food supplements that contain vitamins and minerals.

3. Stress

Piled up office work, neglected homework are some of the things that cause a person to experience stress. Symptoms of stress include headaches, chest pain, anxiety , and feelings of tension. If all of these symptoms occur together, it will cause the immune system to work harder to protect the body from health threats. As a result, the immune system is weak and you become susceptible to disease.

4. Dehydration

The human body is mostly composed of water components, therefore every tissue and organ in the body will depend on it. Water will help carry nutrients and minerals to cells, and keep the mouth, nose, and throat moist, also to prevent illness. The body will experience fluid loss through urination, defecation, breathing, and sweating . Therefore, make sure that you consume enough water so that you can avoid weak immunity.

5. Lack of Sleep

Lack of sleep is one of the things that can interfere with health. Because, actually when the body is sleeping, the cells in the blood will work against the disease. Therefore, make sure you sleep enough so that the cells in the body will be able to work effectively against disease


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