Cells aren’t as passive as scientists once thought—they actively create internal currents to move proteins quickly and ...

People need to sleep, and sleep deprivation can cause many changes in the brain. But we have a poor understanding of why sleep is so crucial. New research has examined a fruit fly model to assess how ...

Macrophages, the immune system’s front-line scavenger cells, do more than simply digest dead cells. A new study published in ...

Scientists have discovered that cells can sense far beyond the surfaces they touch. While individual cancer cells can probe about 10 microns ahead by tugging on surrounding collagen fibers, clusters ...

Aging does not arrive all at once. It builds quietly across years, touching cells long before symptoms appear. Scientists ...

Immune cells called B cells make antibodies that fight off invading bacteria, viruses and other foreign substances. During their preparation for this battle, B cells transiently revert to a more ...

Circulating tumor cells were first described in 1869 by Thomas Ashworth, an Australian pathologist who observed them in a peripheral blood sample taken from a patient with metastatic cancer. 1 They ...

Scientists are exploring ways to mimic the origins of human life without two fundamental components: sperm and egg. They are coaxing clusters of stem cells – programmable cells that can transform into ...

- What is the immune system? The immune system is your body's first line of defence against invaders such as microbes that could give you an infection. Its most powerful weapons are white blood cells ...

But they've done a lot more than that. The impact of sex as a biological variable is far more subtle and pervasive than it may seem. In fact, sex-based differences with implications for our health ...