The sympathetic nervous system (SNS) is part of the autonomic nervous system (ANS), ... Binding to adrenergic receptors causes the effects seen during the fight-or-flight response.

Solar storms may subtly shift your heart rate by influencing heart rate variability and the autonomic nervous system, new ...

The autonomic nervous system is a complex network of cells that controls the body’s internal state. It regulates and supports many different processes, often outside of a person’s conscious ...

Your autonomic nervous system manages everything that occurs in your body automatically. You never have to think about it in order for it to work. It’s made up of three main parts, ...

Medically reviewed by Rafle Fernandez, MDPostural orthostatic tachycardia syndrome (POTS) is a form of autonomic dysfunction. Your autonomic nervous system regulates involuntary functions such as ...

This international study, from investigators in Germany and Austria, looked at the effect sacubitril/valsartan can have among patients who have heart failure with reduced ejection fraction (HFrEF ...

Evidence for a direct effect of the autonomic nervous system on intestinal epithelial stem cell proliferation. Physiological Reports , 2018; 6 (12): e13745 DOI: 10.14814/phy2.13745 Elizabeth A ...

OBJECTIVE: To investigate the association of the promoter region −3826 A to G polymorphism of the uncoupling protein 1 (UCP1) gene with autonomic nervous system (ANS) activity and the ...

Global fMRI fluctuations are associated with systemic physiological changes. Credit: Nature Neuroscience (2025). DOI: 10.1038/s41593-025-01945-y.

Your autonomic nervous system controls things that your body does without having to think about it, such as breathing and digesting. Autonomic dysreflexia (sometimes also called hyperreflexia) is ...