Normal person lungs are pinkish grey in colour. As the time goes on that normal lungs have black spots called as Anthrokosis. What are the signs of unhealthy lungs? 1.) Shortness of breath (dyspnea) 2.) Pain in airway. 3.) Persistent cough (wheezing). So, there are more than 7000 chemicals that are present in cigrette. CommelyContinue reading “How smoking affects your body?”