A study tested 4,000 men and women between the ages of 53 and 67. Doctors found the ability to hear high frequency sounds was damaged in smokers and the obese. They say it gets worse once you start smoking regularly for more than one year.
Smoking, obesity linked to hearing loss
A group of scientists in Belgium says either could affect blood flow to the ear and lack of oxygen to the body, and once the damage is done, it does not repair.
