Add Yahoo as a preferred source to see more of our stories on Google. glowing rainbow DNA strand With the rise of DNA ancestry tests, it’s easier than ever to learn about your family history and ...

DEAR DR. ROACH: I am 85 and healthy apart from polycythemia vera, for which I take aspirin. I was interested in the new blood test for cancer. Is it worthwhile? -- M.N. ANSWER: When screening patients ...

Genetic testing for chronic myeloid leukemia (CML) can tell doctors if someone has leukemia, what type they may have, and whether treatment is working. The tests look for atypical changes in certain ...