All the nerves and nerve cells outside your central nervous system make up your peripheral nervous system. Its task is to relay information from your brain and spinal cord to the rest of your body and ...

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 ...

The nervous system's functioning may become impaired, that can result in experiencing tiredness at all times, even after getting enough rest. This fatigue produces persistent and overwhelming ...

Astrocytes are integral constituents of the central nervous system, serving roles that extend far beyond mere structural support. These specialised glial cells are crucial for maintaining homeostasis, ...

Your nervous system contains millions of nerve cells, called neurons. Neurons are highly specialised to transmit messages from one part of your body to another. All neurons have a cell body and one or ...

The sympathetic nervous system, which helps your heart and other vital organs function all the time, increases activity in response to danger or stress, preparing the body for extra demands. Stress is ...

“Nervous system training refers to any method designed to improve how quickly and efficiently your brain communicates with your muscles. It’s not just about getting stronger, it’s about getting faster ...

Hormones are a crucial part of the body's signaling system, and the controlled release of these compounds affects tissues around the body. Each of these hormones induces specific responses from these ...

Sea urchins, which seem to spend their lives idly attached to undersea rocks, were considered simple creatures without eyes, ...