Lung cancer is a disease in which malignant (cancer) cells form in the tissues of the lung. The lungs are a pair of cone-shaped breathing organs inside the chest. The lungs bring oxygen into the body when breathing in and send carbon dioxide out of the body when breathing out. Each lung has sections called lobes. The left lung has two lobes. The right lung, which is slightly larger, has three. A thin membrane called the pleura surrounds the lungs. Two tubes called bronchi lead from the trachea ...

Smoking is the process of curing, cooking, or seasoning food by exposing it for long periods of time to the smoke from a wood fire. "Hot smoking" is a several-hours-long process that can be used to fully cook raw meats or fish, while "cold smoking" is an hours- or days-long process that is generally used to preserve or flavour foods (usually meats or fish, but sometimes cheeses, vegetables, fruits, and even beer).