It’s a glorified ceramic ashtray on an 18” steel tripod. There’s plenty of room for lit cigarettes, places to perch beverage tumblers (“refreshment corners for drinks”) and indented ...

Cigarette smoking during childhood and adolescence causes significant health problems among young people, including an increase in the number and severity of respiratory illnesses, decreased physical ...

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 ...