Dizziness affects about one-third of individuals over the age of 65 years, and is one of the most common reasons for the elderly to consult their general practitioner. Syncope affects at least 20% of the population at some time and accounts for about 6% of general medical admissions in the UK. Recurrent symptoms are particularly disabling because they affect an individual's ability to work and to drive, increase susceptibility to falls and associated injuries, and reduce independence in the elderly.