Many people around the world use cell phones or mobile phones in their daily lives. With the increase in time spent on a cell phone, there is also concern that these mobile devices, on which we rely so heavily, could give us cancer. There is no consistent evidence linking the use of these wireless devices to any specific type of cancer. Additionally, more research is needed to examine cell phone technology and how people use them. Technology and usage habits are constantly evolving. According to the Cellular Telecommunications and Internet Association, there were more than 320 million cell phone subscriptions in the United States as of June 2011. Cell phones emit energy known as radio frequency (RF) waves, so people are worried that these RF waves will increase. the risk of brain cancer or other tumors. This RF energy comes from the cell phone antenna, where these RF waves are strongest. The closer the antenna is to the head, the greater the exposure to RF energy. Since cell phones are usually held against the head, one could conclude that exposure to these RF waves affects our brain or any area near the antenna of our cell phone. RF waves are a form of electromagnetic radiation, which can be classified into two types: ionizing (high-level frequencies) and non-ionizing (low-level frequencies). These RF waves, otherwise known as radiofrequency energy, are a form of non-ionizing radiation, meaning the energy levels are not high enough to cause atoms and molecules to ionize, according to the Food and Drug Administration (FDA ) from the United States (2012). . Additionally, in research from the American Cancer Society (2012), various factors affect the amount of RF energy...... middle of article ......sRetrieved from http://www. fda. gov/ForConsumers/ConsumerUpdates/ucm212273.htmFood and Drug Administration. (2012) Radiation-Emitting ProductsRetrieved from: http://www.fda.gov/RadiationEmittingProducts/RadiationEmittingProductsandProcedures/HomeBusinessandEntertainment/CellPhones/ucm116282.htmHardell.L. Carlberg, M. Mild, K. (2012). Use of mobile phones and cordless phones is associated with increased risk of glioma and acoustic neuroma. Pathophysiology Vol. 2 Number 2 p.85-110National Cancer Institute, (2013). Cell Phones and Cancer RiskRetrieved from http://www.cancer.gov/cancertopics/factsheet/Risk/cellphonesRedmayne, M. (2013). Mobile and cordless phone use habits of New Zealand adolescents: are they already at increased risk of brain tumors? A cross-sectional study. Environmental healthRetrieved from http://www.ehjournal.net/content/12/1/5