28 January 2011 Last updated at 11:29 Help
By late middle age around one in three people will have experienced some degree of vertigo caused by a problem with the balance system in the inner ear.
Claudia Hammond reports on a technique called the Eply manoeuvre which can cure patients of what can be frightening and disorientating symptoms.
Claudia reports from Guy's Hospital in London where patient Marcia has been treated for BPPV (Benign paroxysmal positional vertigo).
Guy's and St Thomas' NHS Foundation Trust