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Gum Disease Smoking is a major risk factor for gum disease ( periodontitis ), which is a leading cause of tooth loss in adults

But at the same time the cost of goods in Duty Free includes the cost of rent of stores (in the Duty Free zone it is often higher than in the country), salaries of employees, transportation costs, etc

DOEs Office of Science is the single largest supporter of basic research in the physical sciences in the United States, and is working to address some of the most pressing challenges of our time

Within just five years of quitting smoking, the risk of death from smoking-related diseases is reduced by 50% (4)

Together, you work to try to understand them better