Why is everywhere I go I see "Get Your Flu Shot Here". When in fact, the whole point to staying healthy is to build your immune system for more energy, stamina, and vibrant good health. Fact: your immune system is not built by injecting the body with a virus. It is built by building a strong lymphatic system; exercise and eating the right nutrients in order to allow the cells that come from this particular system to seek out and destroy bacteria, viruses, cold and flu bugs. Spend your energy on what works, not what keeps you sick.