How much about the immune system that you understand? Based on studies, the immune system is a large network of organs, white blood cells, proteins, and chemicals. These parts all work together to protect you from germs and other invaders. If you have strong antibodies, your immune system also helps your body heal from infections and injuries. So, what does the immune system do? The immune system works hard to keep you healthy. Part of their roles include:

• Keeping invaders like harmful germs out of your body.
• Destroying invaders.
• Limiting how much harm the invaders can do if they are inside your body.
• Healing damage to your body.
• Adapting to new challenges and threats.

The way that these little soldiers in our bodywork is via several mechanisms, such as:

• Distinguish between your cells and foreign ones.
• Activates and mobilizes to eliminate harmful germs.
• Ceases its response once the threat has been eliminated.
• Acquires knowledge about germs through exposure and produces antibodies in response.
• Releases antibodies to eradicate potential invaders in subsequent encounters.

However, there are invaders that you need to be aware of, such as bacteria, viruses, and fungi. These harmful pathogens can cause infections, and parasites, and even increase the risk of cancer cell formation.

While our immune system tries its hardest to fight against these pathogens, sometimes it does not work properly. For example, if you’re malnourished, your immune cells will not get adequate nourishment as well and may be too weak to fight off invaders. In some cases, our immune system may launch too strong of a response, known as a hypersensitivity reaction, commonly called an allergic reaction.