The amount of radiation that patients are exposed to from CT scans varies widely between institutions and countries, and is largely due to differences in the technical settings of the scanning machines.

New study shows the post-rhinal cortex, appears to obtain visual data directly from an evolutionarily ancient sensory processing center at the base of the brain called the superior colliculus.

Researchers have discovered that the intestine is the source of immune cells that reduce brain inflammation in people with MS, and that increasing the number of these cells blocks inflammation entirely.