>The study doesn't cover the many other ill effects of breathing somebody else's cigarette smoke, of course, which include asthma and possibly cardio-pulmonary

>The study doesn't cover the many other ill effects of breathing somebody else's cigarette smoke, of course, which include asthma and possibly cardio-pulmonary disease. >Previous cancer studies have had mixed results, the researchers said, although the Centers for Disease Control and Prevention still calculate secondhand smoke is responsible for 46,000 heart disease deaths and 3,400 deaths from cancer a year.