Hearing Loss Linked to Passive Smoking

People who are exposed to the second-hand smoke from others' cigarettes are at increased risk of hearing loss, experts believe.

Doctors already know that people who smoke can damage their hearing.

The latest study in the journal Tobacco Control, involving more than 3,000 US adults, suggests the same is true of passive smoking.

Experts believe tobacco smoke may disrupt blood flow in the small vessels of the ear.

This could starve the organ of oxygen and lead to a build up of toxic waste, causing damage.

The harm is different to that caused by noise exposure or simple ageing.

In the study, the researchers from the University of Miami and Florida International University looked at the hearing test results of 3,307 non-smoking volunteers - some who were ex-smokers and some who had never smoked in their lifetime.