The human body has always been crowded with microscopic passengers, from bacteria to viruses and fungi. Over the past two ...

Share on Pinterest Do all our cells have a type of memory, and if so, how might this influence health? We investigate. Design by MNT; Photography by Grant Faint/Getty Images & Ed Reschke/Getty Images.

Despite its importance, the heart is one of the few tissues in the human body that can't repair damage very well – or at ...

Researchers have mapped variation in human stem cells that explains how cells of an individual may shape a unique 'developmental dance' at the molecular level, thereby controlling how the brain and ...

(CNN) — Each human is a finely tuned orchestra of more than 37 trillion cells. Mapping this little-known world is one of biology’s greatest challenges — and one in which scientists say they just made ...

Scientists are developing a "sponge" that can soak up pain signals in the body before they reach the brain, potentially ...

Researchers find obelisks, mysterious RNA molecules in human bacteria that challenge our understanding of viruses and ...

Exclusive: The discovery shows the particles can travel around the body and may lodge in organs ...

Entamoeba histolytica is a single-cell parasite that causes intestinal disease, but sometimes invades the body, attacking cells and creating liquefying abscesses. UC Davis parasitologist Katherine ...