The Blue Zone is used to describe low states of alertness and down feelings such as when one feels sad, tired, sick, or bored.

The Green Zone is used to describe a calm state of alertness. A person may be described as happy, focused, content, or ready to learn when in the Green Zone. This is the zone where optimal learning occurs.

The Yellow Zone is also used to describe a heightened state of alertness and elevated emotions, however one has more control when they are in the Yellow Zone. A person may be experiencing stress, frustration, anxiety, excitement, silliness, the wiggles, or nervousness when in the Yellow Zone.

The Red Zone is used to describe extremely heightened states of alertness and intense emotions. A person may be elated or experiencing anger, rage, devastation, or terror when in the Red Zone.