**4. Cellular effects – To kill or not to kill?**

Like Nobel-laureate A. Szent-Gyorgyi formulated: from the point of view of life, it is not interesting how the monkey goes through the forest, but it is essential how the forest goes through the monkey [as nutrition]. In hyperthermia we have to have the same change of paradigm: it is not important how the incident energy increases the temperature, but that is essential how the incident energy changes the structure and the chemical bonds in the targeted tissue.
