An electroencephalogram (EEG) is a test that records the brain’s electrical activity. Healthcare professionals use it to help assess and understand neurological conditions, sleep disorders, and brain ...

How do scientists peer into the brain to better understand what is happening, where, and why? By taking advantage of the brain’s electromagnetic properties or by sending radioactive markers into the ...

We often think of sleep as a time when our bodies and minds simply “power down.” However, behind closed eyes, the human brain ...