Physical activity levels low among ‘healthy' smokers

New York, U.S.A: Smokers without signs of lung disease may be raising their chances of developing lung problems and other health issues by being couch potatoes, Brazilian researchers say.

They compared so-called healthy smokers to nonsmokers by physical activity levels and quality of life, and found the smokers to be less fit, less active, more anxious and depressed and more likely to have heart disease.