For decades, dermatologists have struggled with a deceptively simple question: when a yellowish bump appears on a patient’s ...

A tickly itch, a painful scratch, or the feeling of a refreshing breeze—the skin is teaming with nerve endings that drive these sensations. Scientists are getting into the epidermis to explore how ...

Could wounded skin someday regrow perfectly without scars? A new study by Harvard stem cell biologists published in Cell reveals a way to fully regenerate skin by unblocking an embryonic healing ...

Deep inside a small, windowless room at the University of California, Berkeley, two microscopes are quietly capturing some of the most detailed views of life ever recorded. Day and night, they collect ...

A hybrid microscope allows scientists to simultaneously image the full 3D orientation and position of an ensemble of molecules, such as labeled proteins inside cells. The microscope combines polarized ...

As we grow older, some cells stop dividing but remain in the body. Scientists call them senescent cells. They are sometimes nicknamed “zombie cells” because they are still alive, even though they no ...

Converting one type of cell to another—for example, a skin cell to a neuron—can be done through a process that requires the skin cell to be induced into a "pluripotent" stem cell, then differentiated ...