A major study has identified 16 health conditions that could increase someone's risk of developing dementia, potentially ...

When scientists sequence tumor DNA, they typically find small amounts of genetic code from bacteria, viruses and fungi – microorganisms that, if actually present in tumor tissues, could influence how ...

In the U.S., one in eight women will get breast cancer in their lifetime, and about half of them will have mastectomies. Many of those women opt to have their breasts surgically reconstructed, most ...