The sympathetic nervous system was thought to have evolved with jawed vertebrates. But lampreys—jawless, parasitic fish that suck out the blood of their hosts—have a simple one, per recent research.

The sympathetic nervous system, which enables the fight-or-flight response, was thought to be present only in jawed vertebrates. Analysis of a jawless vertebrate suggests that this system might be a ...

The sympathetic nervous system (SNS) plays a crucial role in the regulation of cardiovascular function, mediating rapid adjustments in heart rate and arterial blood pressure during stress, physical ...

Lately, everyone seems to be talking about what happens when the nervous system becomes “dysregulated” – including a cascading array of ailments both physical and psychological. Google searches for ...

Researchers have created a digital topographical map of the cardiac sympathetic neural network, the region that controls the body's heart rate and its 'fight-or-flight' response. They hope this map ...

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 in ...

In a review published in the journal Advanced Science, researchers discussed the interplay of the immune system and the sympathetic regulation of vital metabolic organs such as the pancreas, intestine ...

The term “sympathetic nervous system overload” sounds daunting, but the root cause is pedestrian: stress. Stress is, of course, something we all experience all the time, but left unchecked, it can ...

In a culture in which everything feels urgent, social media is filled with bad news, and our work days feel endless, something’s bound to give. Often, that thing is our nervous systems. In fact, if ...