Your body is brilliant at protecting itself

Despite the fact that, yes, on occasion we do catch a cold or a flu, your body does an incredible job at protecting itself. White blood cells rush to the scene to destroy any potentially harmful cells that enter your body. In the time it took for you to read that, 22 million cells in your body died. In the next 30 seconds, your body will produce 72 million more red blood cells and will destroy 174,000 old skin cells to be replaced.