"Cryo" refers to extremely low temperatures, often used in scientific and medical contexts. It is derived from the Greek word "kryos," meaning cold. Cryogenic processes involve cooling materials to below -150 degrees Celsius (-238 degrees Fahrenheit), which can preserve biological samples, such as cells and tissues, for research and medical purposes. In medicine, cryotherapy utilizes cryo techniques to treat various conditions, including inflammation and pain. This method can involve applying cold packs or using liquid nitrogen to freeze abnormal tissues, such as warts or precancerous cells. Overall, cryo technology plays a significant role in both research and therapeutic applications.