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 ...

A sudden sensation of numbness? The nagging headache that just won’t quit? That weird weakness in your leg? They’re all symptoms of neurological disorders — a family of conditions that affects more ...

Long after a traumatic event has passed, a person’s nervous system can be reactivated whenever they perceive danger, whether or not danger is present. This feeling of heightened arousal is like being ...