IMMUNE SYSTEMS MATTER
… from the day we are born we are assaulted by germs — by the millions, if not billions. Our very existence is dependent on a robust immune system — that is, the ability of our bodies to fight off any invasion of bacteria, viruses, fungus, mould, and other pathogens. Fortunately, we were created with a powerful internal standing army of cells ready to protect us in each battle and capable of winning most wars.
In order for our immune system to be prepared for those battles, it has to train regularly and bring new recruits to the effort. Even before we are born, our immune system is exposed to germs and working to protect us. The result is that our body creates germ-specific special ops fighters to defeat a variety of enemies that life throws against us.