Each octopus arm has its own dense network of neurons, up to 350 million across all eight arms, that can work without the brain.

A 37-year-old woman with HIV infection (CD4: 5 cells/μl) presented with acute dysarthria and right hemiparesis. A brain CT showed nodular hyperdense lesions; MRI depicted cortico-subcortical ...

Your autonomic nervous system helps regulate emotional balance, but chronic stress or trauma can trigger an overactive fight-or-flight response. Nervous system dysregulation refers to a condition ...

The sympathetic nervous system, which helps your heart and other vital organs function all the time, increases activity in response to danger or stress, preparing the body for extra demands.

Bacteria can do it, amoebas can do it, even blood cells can do it: They all have the ability to move in a goal-oriented way in liquids. And they do so despite having extremely simple structures ...

May 22, 2025 — Worldwide, more than 55 million people suffer from dementia caused by Alzheimer's Disease (AD) and other conditions that destroy cells in the brain and nervous system. While there ...

Researchers at Karolinska Institutet have identified three types of nerve cells connected to the intestinal villi, suggesting ...

UT Southwestern Medical Center scientists have identified a protein that appears to act as a master control switch for ...

Our sympathetic nervous system (responsible for the fight, flight, freeze, and fawn responses) is being thrown into overdrive because we remain on high alert, constantly reacting to stressor after ...

Gene delivery systems can target specific brain cells, a breakthrough that could lead to treatments for Parkinson's, ...

Axial Seamount has exhibited increasing volcanic activity, with scientists able to measure the swelling of the underwater structure in the Pacific Ocean — indicating that the top could blow off ...