For a large percentage of men with prostate cancer, the tumor may grow so slowly that doctors recommend a "watch and wait" approach instead of active treatment.
A team of researchers has demonstrated that some childhood leukemias begin during embryonic development, although they do not appear until several months after birth.
Scientists found that people who self-reported memory problems were more likely to have elevated levels of proteins associated with Alzheimer's disease.
CT scans revealed that more than a third (37%) of 237 adult mummies from seven different cultures spanning more than 4,000 years had signs of clogged arteries.
