It appears to be the result of the abnormal volume or composition of fluid in the inner ear.

CNN: Meniere's disease

In order for all of the sensors in the inner ear to function properly, the fluid needs to retain a certain volume, pressure and chemical composition.

CNN: Meniere's disease

"We are expecting a different degree of price correction in different cities, with major and coastal cities likely to see (bigger declines in prices) this year compared to the inner cities, " said Daiwa Capital Markets analyst Danny Bao, who added that he expects property transaction volume to fall 10% this year.

WSJ: China Home Prices Fall Again