When I lived in Paraguay I had a friend who was seemingly healthy at 23 until he was diagnosed with lymphatic cancer (my translation of what he said in Spanish). I found out he had been very abusive of his immune system by drinking alcohol, smoking, partying, eating too much meat and not enough fresh vegetables. I had him correct all that and I loaned him an electronic blood purifier that worked to disable the cancer-causing viruses in his bloodstream. He used it up to an hour each day. Two months later I visited him again at his clothing store and he said the tumors were greatly diminished. Next time I came to visit him his store was closed and I didn't have his new phone number. About a year later I ran into a friend of his and I asked how he was. He said he was fine, had married, and has a new job. Mission accomplished!