IntroductionCell phones were invented by Dr. Martin Cooper who led a team of developers at Motorola and made the first phone call on April 3, 1973 at Motorola. Cell phones are portable devices used by many people these days. Cell phones are a great help to those who use them. Cell phones allow you to stay in touch with family and friends all over the world. Mobile phones use and transmit waves to receive and send signals and emit radiation. However, there is a small problem with these devices, they emit radiation, which may or may not be dangerous. Radiation refers to the discharge of energetic electromagnetic waves or moving subatomic particles, especially high-energy particles that cause ionization. Radiation that can produce ions when it interacts with matter is called ionizing. Ions are charged particles produced when electrons are removed from their position in atoms. Alpha particles, beta particles, x-ray particles and gamma rays are forms of ionizing radiation. However, radiation that is not capable of producing ions in matter is called non-ionizing radiation. Radiation is energy that travels through space or matter at very high speed. Energy can take the form of particles, such as alpha or beta particles, emitted by radioactive materials, or waves such as light, heat, radio waves, microwaves, x-rays and gamma rays. Subatomic medium meaning, relating to, or being a particle constituting an atom or a process occurring in atoms. Electromagnetic means a type of radiation including visible light, radio waves, gamma rays and x-rays, in which the electric and magnetic fields vary. .... middle of paper ...... it's for everyone. This is a good thing because it will help people be aware of radiation and be willing to protect themselves. In 2011, the International Agency for Research on Cancer (IARC) classified cell phone radiation as Group 2B – possibly carcinogenic, meaning there "may be some risks", but they also say that in-depth experiments still need to be carried out. There is no reliable specific statement that cell phones are dangerous, but despite this, it is best to use them as little as possible. In a public statement, Xavier Bertrand, French Minister of Health, said: “Because the hypothesis of a risk cannot be completely excluded. The precaution is justified. Cell phones have made our lives easier by saving us time; however, we must use it in the right way and not just in the wrong way. Today, the cell phone is used unnecessarily for everything.