Red blood cells transport oxygen throughout your body, including to vital organs and tissues. They also help your body get rid of carbon dioxide. Too little or too many red blood cells may be ...

When you were first conceived, you were a single cell. From this basic fact, we can extrapolate a few things, most especially that all the cells that make up your body today came (indirectly) from ...

Your skin is in a constant state of reinvention. Every month, your body sheds and regenerates its entire outer layer—a complete turnover powered by tiny, tireless stem cells. These same cells spring ...

Whether it’s counting red blood cells under a light microscope or recording bursts of electricity as neurons fire, scientists spend a lot of time studying cells. With such a diversity in form and ...

There’s unexpected movement in the world of cell biology — specifically, with the energy factories known as mitochondria. Ever since they were discovered in the mid-nineteenth century, mitochondria ...

A small but enthusiastic group of neuroscientists is exhuming overlooked experiments and performing new ones to explore whether cells record past experiences — fundamentally challenging what memory is ...

How does a cell know when it’s been damaged? A molecular alarm, set off by mutated RNA and colliding ribosomes, signals danger. When the sun shines on your skin, what does it hit? When it causes a ...