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

The human body contains around 36 trillion to 37 trillion cells, and researchers are mapping out where every one of those cells lives. Scientists with the Human Cell Atlas (HCA), an international ...

There are hundreds of cell types in the human body, each with a specific role spelled out in their DNA. In theory, all it ...

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

Scientists mapping the human body at the cellular level keep running into the same surprise: beneath the apparent chaos of tissues and organs, there is a hidden order that looks a lot like pure ...

Researchers have created an early map of some of the human body's estimated 37.2 trillion cells. Each type of cell has a unique role, and knowing what all the cells do can help scientists better ...

Scientists discover how aging alters the function of cells, called mesenchymal drift, and manage to reverse this process.

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.

Your chances of catching a cold—and how miserable it feels—may depend more on your body than on the virus itself.