under the microscope

Genetic drift.

“Scientists have identified a new member on the genetic family tree of an endangered pupfish native to south-central New Mexico.” They think the origin of the new species is genetic drift, not natural selection. “Genetic drift results from the random […]

under the microscope

Scientists see hope for curing autoimmune disease.

In autoimmune diseases, the body attacks its own cells. That poses a problem because stopping the attack also comes with lowering the body’s immunities against foreign invaders. Some recent understanding of cellular function, supported by clinical trial results, is promising. […]

under the microscope

New cells discovered in the heart.

The fact that we’re still discovering new cells in an organ that scientists have been studying forever is both exciting and a bit scary. “The cells, now named nexus glia, seem to help regulate heart rate and rhythm, and the […]

under the microscope

Why do placebos work?

Scientists used fMRI to detect which parts of the brain were pathways for the placebo and nocebo effects. They found the brainstem active during both. | learn more