THE IMMUNE SYSTEM

The human body takes care of itself without you even knowing what’s happening. The body takes care itself through its immune system. The immune system is in charge of keeping the body safe from invading germs that try to attack it every day. The immune system uses both the organs of the body and the blood.

The immune system defends the body against attacks by germs and bacteria. The system includes the skin, white blood cells, and the lymph system. The immune system works like a fort protecting the body, and it will increase its defences when it is necessary.

The skin is the first defence against germs, and it covers the body like a shield. Keeping the body clean is quite important since it is the first place the germs attack. The white blood cells are the watchmen of the blood. The body is constantly making white blood cells, since they only live for a few weeks. Other types of white blood cells attack germs and bacteria when they are detected in the body. The lymph, which is a combination of tissue and organs, helps the body get rid of toxins, waste, and other unwanted materials.

Some germs, though, actually help make the immune system stronger. It is important for the body to be exposed to some germs because the immune system can then fight off the germs when they come back. This is how a vaccine works. A weak virus is actually injected into the body for the immune system to fight against.

Reducing stress and getting enough sleep are two ways to keep the immune system healthy. The immune system will begin to break down if the body gets less than five hours of sleep, and stress also slows down the immune system.