Your nervous system uses billions of tiny, connected nerve cells called neurons to send the messages, which are electrical and chemical signals that tell your body what to do. Your nervous system is ...

A popular image shared by science-focused social media accounts is that of an image labeled as some variation on "the complete human nervous system dissection" or "a fully dissected nervous system." ...

Based on: Textbook of the Nervous System: A foundation for clinical neurology. By H. Chandler Elliott, M.A., Ph.D. With an introduction by Wilder Penfield, M.D. 4 ...

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 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 ...

Octopuses are not much like humans — they are invertebrates with eight arms, and more closely related to clams and snails. Still, they have evolved complex nervous systems and are capable of a wide ...

When a person is at rest, meditating or reading a book, the parasympathetic nervous system is at work. Also known as the "rest and digest" system, the parasympathetic nervous system is responsible for ...

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 ...