Informative Speech On Brain Cancer

Every year nearly 12.7 million people are diagnosed with cancer and 7.6 million die from the disease, out of these 7.6 million about 16,700 adults die from brain cancer. Cancer is a disease we now often hear about in our lives considering it’s second leading cause of deaths in the world, but how many people actually know what cancer is other than it’s something you don’t want in your life? Cancer is essentially the uncontrollable growth of abnormal cells. It’s typically caused by genetic mutations in our DNA which are influenced by outer factors like smoking or ultraviolet rays. Cancer cells have the ability to ignore signals that tell the cells when to stop reproducing or when to die thus reproducing new cells when unneeded and having old, damaged cells live way past their lifespan.
Although the exact cause of brain cancer is unknown many scientists believe it’s caused by damage to the chromosomes of DNA in the nucleus of the brain cells. DNA is instructions for the cells so obviously if it were damaged the cells would act irrationally. According to Cancer.org “Certain genes that help cells grow, divide, and stay alive are called oncogenes. Others that slow down cell division, or cause cells to die at the right time, are called tumor suppressor genes” (The American Cancer Society medical and editorial content team, 2016). Sometimes cells incorrectly copy the DNA during mitosis causing there to be irregularities in the oncogenes and/or tumor suppressor genes which then triggers the sudden death and/or reproduction of