I've never heard of immune systems being described in this manner. One thing is certain that ones' own immune system is one of the most important and independent system in our entire cellular structure. It is true that immune systems must be maintained by eating the proper foods. But there are diseases that slowly compromise an immune system some curable others not so. But we as humans should do everything in our power to avoid such diseases. This is because from what I've heard about them no amount of healthy eating can prevent an immunes system killer from compromising an immune system. Immune killers aside the best attitude to maintaining a healthy Immune system is a positive attitude.
RE: Biological Security Guards - we have the bio, where is the logic?