Radiation is something we are exposed to on a daily basis; it is in the air that we breathe. Radiation is used in hospitals, research laboratories and in many medical procedures. It is also commonly used as a treatment for cancer. In some cases it helps and in others it doesn't. Radiation is used to treat cancer because it kills cells. The problem is that it kills healthy cells at the same time as it kills cancer cells. Although medical imaging emits radiation, it can detect serious injuries and illnesses. Radiation is measured in different ways and has many side effects on our body depending on the dosage. We are exposed to it involuntarily in the environment and sometimes voluntarily during treatment. Additionally, research is underway to try to reduce the amount of radiation during medical procedures. We must first understand what radiation is. Radiation occurs when excess energy is released. This process occurs when unstable atoms become stable. This happens to radioactive materials. There are three common types of radiation emissions. These are alpha particles, beta particles and gamma rays. Alpha particles can be dangerous if inhaled or ingested. They can also enter your body through a cut, but they cannot bypass human skin. Beta particles can be very dangerous to your health if ingested, inhaled or if they enter through a cut. You should know that it can sometimes penetrate through your skin, unlike alpha particles. In most cases, it's best to have a thicker layer covering your skin to be sure it doesn't pass through your skin. The most serious type of radiation emission is gamma rays. Like the other two, it can cause serious harm if in the middle of a paper and reduces patients' exposure to radiation. The first thing is that they will only schedule an imaging test if it is absolutely necessary. Second, they focus on dose optimization. Third, they reduce their patients' dose to the lowest possible level (Shrestha). Radiation is all around us and exposure to it is inevitable. Some exposure, such as in the environment, is involuntary. We are also voluntarily exposed to it in medical imaging. As noted above, radiation has many positive and negative sides. Medical imaging has developed considerably over the years and can detect injuries and illnesses. The negative side of radiation concerns all the dangerous health effects that can harm our body. Scientists are working on a lot of research aimed at reducing the amount of radiation our bodies are exposed to during medical imaging..