How to Improve Your Immune Function
by Dr. Joseph Mercola STORY-AT-A-GLANCE Natural killer (NK) cells are a specific type of white blood cell. They’re an important component of your cell-mediated (innate) immune system and are involved in both viral diseases and cancer NK cells are cytotoxic; they induce apoptosis (programmed cell death), which destroys the virus along with the infected cell […]