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, called the ...

The sympathetic nervous system controls the body's flight or fight mechanism. Learn about its vital functions, & how it regulates bodily processes.

Maintaining a stable heartbeat is critical for survival. Your heart must constantly adapt its output to meet changing demands for oxygen and nutrients. Traditionally, scientists have attributed this ...

The parasympathetic nervous system (PSNS) is one of two major divisions of the larger autonomic system in your body. Its function is to keep the basic functions of your body working as they should ...

The parasympathetic nervous system is the housekeeping manager for the body. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.