NEW YORK — In a remarkable finding that challenges what scientists have long believed, a new study finds that the ability to learn and form memories is not exclusive to the brain, but is in fact ...

Cells are the building blocks that form all the tissues and organs of the body — and now, scientists have an estimate of just how many individual cells the human body contains.

Researchers believe they discovered a new type of life form living in the human body that were previously misidentified as viruses.