Every winter, as the air sharpens and scarves return to shoulders, an old visitor also makes a reappearance: the flu. It ...

Scientists have finally watched influenza viruses break into living human cells in real time, catching the microscopic ...

Scientists are learning how to revive faltering human cells by loading them with fresh power plants, effectively repairing ...

A newly revealed molecular tug-of-war may have implications for better understanding how a multitude of diseases and ...

Biomedical researchers at Texas A&M University may have discovered a way to stop or even reverse the decline of cellular energy production—a finding that could have revolutionary effects across ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Each human is a ...

The human small intestine absorbs nutrients while protecting us from potentially harmful microbes. One of the cell types that ...

Creating human eggs from adult cells just got one step closer to reality. A technique used in cloning combined with fertilization and a bit of chemical coaxing caused human skin cells to produce eggs ...

Stem cells age faster and become functionally exhausted in low Earth orbit, making crewed long-duration space travel even more challenging. When you purchase through links on our site, we may earn an ...

Tiny structures inside your cells keep your body alive by turning food into fuel. These structures, called mitochondria, ...