I m pretty sure that my answer only takes some common sense. But, in the past year I lost a close friend to colon cancer. Before she was diagnosed she was using meth. After being diagnosed, operated on and treated, only a few months had past before she passed away. My son s father, a meth user, was diagnosed with colon cancer, cancer in his spine and neck, back in may. He was treated with chemo and I believe radiation. But, through his treatments he continued to use. He is close to death. What is your opinion on meth use associated with cancer cells before its detected? Does it make the cells blow up quicker?