This just in. If you think by allowing people to smoke is good for your business, you’re sorely mistaken! Studies of restaurants and bars in Boston, New York City, San Francisco and Washington D.C. all show business up since they banned smoking. Chicago went smoke free the beginning of this year.

In the United States, 23 states have already banned smoking in restaurants and bars. A number of other states, including Michigan, are considering it. While many bar and restaurant owners say a smoking ban would hurt business, that appears to not be the case at all.

So you think there’s nothing wrong with a little second hand smoke?

According to a case report by a Michigan State University physician, published in the February edition of the American Journal of Industrial Medicine,  a woman arrived at a bar in Michigan for her shift as a waitress and, according to co-workers, seemed happy and healthy. About 15 or 20 minutes later she collapsed and within a few minutes died.

“This is the first reported acute asthma death associated with work-related ETS,” said Kenneth Rosenman, an MSU professor of medicine and chief of the Division of Occupational and Environmental Medicine. “Recent studies of air quality and asthma among bar and restaurant workers before and after smoking bans support this association.”

In 2006, the surgeon general’s report concluded that ETS causes coronary heart disease, lung cancer and premature death. But at that time there was little hard evidence linking ETS to the exacerbation of asthma in adults. ETS for the uninitiated is shorthand for environmental tobacco smoke or “second hand smoke”.