Astonishingly, in spite of decades of research, there is no agreed theory of cancer, no explanation for why, inside almost all healthy cells, there lurks a highly efficient cancer subroutine that can be activated by a variety of agents - radiation, chemicals, inflammation and infection.
“No, only disappointment in myself on those occasions I didn't manage to rise to the occasion as I felt I should've done. I can always see how to do it, and then the challenge is, Can I manage that each and every day?”