There are a few people who have influenced research on radiation, one of whom is Dr. Allan Frey, biophysicist, and engineering psychologist. His work has changed the scientific approach to the subject of radiation and made it an important topic for other scientists.
Allan Frey became the most active researcher on the health effects of microwave radiation in the United States. His studies were funded by the Office of Naval Research and the American army because of the expanding use of radars by the U.S. military at that time. He was testing his theories on rats and frogs, these animals reacted to smaller doses of radiation than we know are emitted from modern smartphones. He was a pioneer in the field of radiation and its impact on living creatures.