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 ...

Your sympathetic nervous system is one of the branches of your autonomic nervous system. It controls functions under unconscious control related to “fight or flight.” Your nervous system plays a ...

Each part of the nervous system uses internal checks and balances to regulate its activity, responding to various factors like mood, health status, and the external environment.¹ These regulatory ...

Your nervous system is like a highway. When the roads are clear and well-maintained, traffic flows smoothly. Messages travel from your brain to every cell in your body without obstruction. We obsess ...

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 ...

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 ...