BOSTON -- In medical news, NewsCenter 5's Heather Unruh reported on an eye test that may help detect Alzheimer's disease, men struggling with eating disorders and the study that has countless workers breathing easier.

Smoking Study

Banning smoking in the workplace can lead to better health -- and fast. A new study in the Journal of the American Medical Association measured bar workers' lung health before and after a workplace smoking ban went into effect.

Within one month, researchers said that they saw dramatic improvements. Even asthmatic bar workers had less airway inflammation.

Massachusetts banned smoking in workplaces two years ago, but a similar move in New Hampshire was voted down.

Men And Eating Disorders

Eating disorders may be more common in women, but there's growing evidence the illness is crossing gender lines.

According to the American Journal of Psychiatry, the number of men battling eating disorders such as anorexia and bulimia may be increasing.

Already, more than 1 million men nationwide have an eating disorder.

Detecting Alzheimer's Disease

Imagine an eye scan that can detect Alzheimer's disease.

That's exactly what researchers at Brigham and Women's Hospital have developed. They said the test detected a protein buildup that can be a sign of Alzheimer's. The scan was 100 percent accurate in mice. Now, it's in the first stages of testing it on people.

Doctors said that the eye scan is simple enough that people could one day get annual Alzheimer's exams to detect early onset of the disease.