Which is a major factor regulating sleep?

A) Electrical impulses transmitted to the cerebellum
B) Level of sympathetic nervous system stimulation
C) Amount of sleep to which a person has become accustomed
D) Amount of light received through the eyes

Sympathetic Nervous System

A part of the autonomic nervous system that activates the body's flight-or-fight response during stress or danger.

Electrical Impulses

Rapid signals that travel along the nerves or muscle fibers, facilitating communication between different parts of the body or triggering muscle contractions.

Cerebellum

A section of the brain involved in the coordination of voluntary movements and balance.