Radiation can cause lymphoma and leukemia.

What if a person has stage 1 breast cancer with no lymph node involvemet and have estrogen and progesterone negative tumors, will chemo strongly be recommended for that person especially if they are young? Also, I would like to know are positive estrogen and progesterone tumors very slow growing tumors? Are negative tumors faster growing?

My friend had a resected bowel in January 2010 due to precancerous cells found during a routine colonoscopy in November 2009. She is 50. They said it was between a Stage 2-3, but because she is a non-smoker, that drops it to a Stage 0. She is not tolerating the procedure of her chemotherapy very well (air passages closed briefly in cold weather) and is wondering if she even needs it! Any suggestions for her?

This would be for brain cancer. I have seen altervative therapies but how does one go about participating