WHAT IS A NATURAL KILLER CELL AND WHAT ROLE DOES IT PLAY IN THE IMMUNE SYSTEM?
Natural killer (NK) cells are critical components of immune system function. Research shows that low NK cell activity is present in nearly all illnesses. NK cells defend the body against attack by foreign invaders. NK cells are non-specific, meaning they attack any target including bacteria, tumor or virally infected cells. The NK’s ability to randomly attack a wide range of foreign invaders is the basis of the name “natural killer” cell.
