Cryogenic freezing is a process that involves cooling materials to extremely low temperatures, typically below -150 degrees Celsius (-238 degrees Fahrenheit). This technique is often used to preserve biological samples, such as cells and tissues, by slowing down molecular activity and preventing damage from ice crystal formation. In addition to biological preservation, cryogenic freezing is also utilized in various industries, including liquid nitrogen storage for food and space exploration to maintain the integrity of materials. The technology has potential applications in medical research and cryonics, where individuals hope to be revived in the future after being frozen.