Our body is composed of about 60 trillion cells and it’s said that around 5,0000 cancer cells are also created even healthy people through new cells replace old cells everyday. But immune cells, such as lymphocytes monitor and destroy cancer cells. So, it’s also said that healthy people doesn’t fall cancer thanks to immune cells those attack cancer cell and destroy, however, cancer patient fall cancer due to weakening of immune cell activity. Cellular immunotherapy is a treatment by heightening your own immune cell activity, then attacking and destroying cancer cells.