Cancer is a group of diseases that involve the uncontrollable
growth and spread of abnormal cells. Good healthy cells in the body
have a normal life cycle: they grow, divide and die.
Cancer cells starts out as good healthy cells that unfortunately then turn bad. Cancer cells take on an abnormal life cycle, they grow and divide, but instead of dying, they keep growing and dividing. The problem arises when the abnormal cancer cells go berserk, grow uncontrollably and sometimes outlast and over take the good healthy cells.
http://www.canteen.org.nz/dealing-with-cancer/getting-to-grips-with-it
Cancer cells starts out as good healthy cells that unfortunately then turn bad. Cancer cells take on an abnormal life cycle, they grow and divide, but instead of dying, they keep growing and dividing. The problem arises when the abnormal cancer cells go berserk, grow uncontrollably and sometimes outlast and over take the good healthy cells.
http://www.canteen.org.nz/dealing-with-cancer/getting-to-grips-with-it