Your autonomic nervous system (ANS) is the part of your central nervous system (CNS) that controls unconscious activities like breathing and digestion. This system is always working, whether or not ...

Autoimmune autonomic ganglionopathy (AAG) occurs when your immune system attacks healthy nerve cells in your autonomic nervous system. It causes symptoms like dizziness or faintness. Autoimmune ...

Parkinson’s disease is a neurological condition that can affect several areas of the brain. The area it affects the most is known as the substantia nigra, which is involved with movement. Nerve ...

Imagine standing up and your heart suddenly races as if you've sprinted a mile—except you haven't budged. For millions of Americans with Postural Orthostatic Tachycardia Syndrome (PoTS), this dizzying ...