Long-term Smokers Displayed Symptoms Not Meeting Smoking-related Disease Criteria Shows Study – Top Speed News
Long-term smokers showed symptoms not fitting any of the existing tobacco-related disease criteria, in a study conducted in the US. 1379 people aged 40 to 80 years were recruited. Half of them showed persistently high levels of respiratory symptoms such as shortness of breath, daily cough and phlegm, and decreased ability to exercise. However, they…