They can be flighty and changeable; thus sanguine personalities may struggle with following tasks all the way through and be chronically late or forgetful.
Sanguine people (or those with high extraversion and low neuroticism) had the lowest overall levels of internal arousal, or a predominance of inhibition.
Four elements (earth, air, fire and water) combine into complexion, which combines into states (the four temperaments: sanguine, phlegmatic, choleric, and melancholic).
