We can assume that the lungs on the left, the tarry, almost charred-looking air bags, from a smoker, led to their premature demise through COPD (chronic obstructive pulmonary disease, a condition that used to go by the name of chronic bronchitis with emphysema, also occasionally referred to as COLD, chronic obstructive lung disease and chronic obstructive airway disease, COAD), or perhaps they succumbed to lung cancer, cancer of the oral cavity, the throat, the trachea, the oesophagus, the stomach, the live, the pancreas, the kidneys, all of which have raised incidence in smokers. Maybe they died of heart failure or a stroke. Smoking is often part of an unhealthy lifestyle and so the person may also have had Type 2 diabetes due to obesity and all that those two conditions bring with them, who knows? [Presumably, the pathologist who hacked out the lungs, Ed.] But, what about those puffy pink lungs? What did that person die of…?