The sympathetic nervous system regulates the "fight or flight" responses.

The parasympathetic nervous system regulates the "rest and digest" responses.

We can begin to see how the system would regulate back to normal when parts are removed.

The system also regulates when certain programming may air on broadcast television:

The renin-angiotensin system regulates the amount of fluids and sodium in the body.

The system regulates about 40 percent of reimbursements in the state's $20 billion a year health care industry.

The nervous system controls blood pressure, regulates sleep, maintains balance and coordinates movements.

The nervous system also regulates the actions of most other body systems, such as blood flow and blood pressure.

The monetary system regulates the money supply and interest rates by buying/selling treasuries.

Research suggests that this system regulates social approach behavior, much as hunger, thirst, or sexual drives are biologically regulated.