This advertisement has not loaded yet, but your article continues below. The more than 100 carriers that fly to Israel in peacetime have been winnowed down to fewer than a dozen, giving Israeli ...

Smoking—cigarettes, cigars, pipes, marijuana, and even electronic cigarettes, or e-cigarettes—can have a harmful effect on your entire body, but especially on your respiratory system. This includes ...

The other part is how much you've smoked each day during that time. Since lung cancer is directly related to the number of cigarettes smoked, doctors can use pack years to help assess someone's risk ...