Although 5G may improve our day to day lives, some consumers have voiced concern about potential health hazards. Many of these concerns are over 5G's use of the higher energy millimeter-wave radiation. ... It's ionizing radiation that is dangerous because it can break chemical bonds. the new network generates radiofrequency radiation that can damage DNA and lead to cancer; cause oxidative damage that can cause premature aging; disrupt cell metabolism; and potentially lead to other diseases through the generation of stress proteins.