Light-headedness is a common and often unpleasant sensation of dizziness and/or feeling that one may be about to faint, which may be transient, recurrent, or occasionally chronic. Keeping a sense of balance requires the brain to process a variety of information from the eyes, the nervous system and the inner ears. However, if the brain can't process signals from all of these locations, if the messages are contradictory, or if the sensory systems aren't functioning properly, an individual may experience dizziness and loss of balance.