Relinquishing personal information on a pop-up box or unknown source could lead to the loss of money or identity theft.

FORBES: Cyber Crooks See Huge Opportunity In Japan's Tragedy

Dr Eric Karran, from the charity Alzheimer's Research UK, said the exact connection between hearing loss and cognitive decline was still unknown.

BBC: Hearing loss in 'brain decline link'

At the time the FDA said the drug resulted in "significant" weight loss but the agency said it was concerned about a possible risk of birth defects and an unknown impact on the heart.

WSJ: Federal Panel Approves Weight-Loss Drug Qnexa