First line of defense
Your skin blocks germs from getting into your body; there’s a layer over your eye, the cornea, and linings of your lungs, digestive system and other organs that block germs from getting into your bloodstream. A cut, sore or burn can make an opening for germs to get in and infect you.
besides Washing your hands, Sweat, tears, and mucus flush away germs and also contain enzymes that kill bacteria.
Throughout your body, The lymphatic system collects waste like dead cells and germs. When it has too much waste the nodes swell.
When you’re born, your body has everything it needs to defend itself against germs and infection. As you get older your immune system learns other ways to protect you. Our bodies can build up immunities if you are only exposed to small amount of antigens, like from a cold, virus or a vaccine.
Your white blood cells are natural killer cells. They attach to the first signs of abnormal cells... anything from virus to cancer cells.
organs such as your spleen, tonsils, adenoids, appendix are also part of the lymph system.
The takeaway: the main thing to remember is that your body has its own defense system for many different disorders and invaders you may happen upon.
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