What is exactly is my immune system? The immune system is your body's “defense force.” It protects your body against foreign invaders (e.g., viruses, parasites and bacteria) or aberrant cells already present in your body (e.g., cancer cells). The immune system is fascinatingly complicated. For our purposes today, we will examine behaviors that you can control plus a particular aspect of your immune system that is involved in combating cancer: Natural Killer (NK) cells.What causes my immune system to be weakened?There are plenty of causes, but our "top five" behavioral-based culprits are: Poor dietary habits Lack of exercise Allergies, both airborne and food-based Lack of...

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