This is the process of heating a tumor approximately 10 degrees fahrenheit. It is generally done with a microwave type mechanism. This in and of itself is capable of killing certain types of cancers. But that is not where the great promise lies. It has been found that hyperthermia can magnify the benefits of chemotherapy or radiation therapy several fold without much downside risk. A critical matter is monitoring the exact temperature of the tumor and the surrounding tissue. For this reason, it had previously been done on lesions relatively near the surface. However, great advances are being made, and it is being tried with many types of cancers. The moderate increase in temperature is not damaging to ordinary cells and not dramatically uncomfortable to the patient. In many applications, hyperthermia is considered experimental today with tremendous potential.