Cold environments can be used for multiple things: keeping food fresh, making ice cubes and prolonging life during surgery. Medical surgeons are now using the art of extreme cooling methods to allow them the ability to pause the patient's heart long enough to finish their surgical procedure.
According to Dr. John Elefteriades, "the body is essentially in true, real-life, suspended animation, wit no pulse, no blood pressure, no signs of brain activity." Yikes! Extreme cooling methods certainly gives a whole new meaning to 'cold-hearted.'