When cigarettes were first introduced, they were perceived as an item of personal preference and spread widely, but the perception changed as they became known as a cause of various cancers, including lung cancer, and cardiovascular and cerebrovascular diseases
And it was a state-of-the-art one, too, with animated lights, moving traffic, and the ability to change from night to day
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If it looks heavily coated in dust or you can't easily shine a light through it it's likely time for a replacement, Hoskins says
While cardiovascular outcomes such as blood pressure and heart rate normalize rapidly after smoking cessation, quantifiable respiratory improvements (e.g., decreased rate of decline in lung function) may require a sustained period of smoking cessation
Its also the number one risk factor for lung cancer