A great blog post from Nature's Sunshine about 9 Natural Immune Boosters is just what is needed right now with the sickness and yuckies in the air! "1. ECHINACEA The root and leaves of this purple coneflower have been used for centuries by American Indians and Europeans to boost immunity. Echinacea triggers the body’s white blood cells to attack unwanted invaders. According to research, it can significantly increase the body’s white blood cell count. Specifically, this herb i