Smoking causes heart disease, stroke and lung cancer, among many others. However, smoking-related diseases are not caused by nicotine.

The sickness and death caused by smoking is due to the burning of dried tobacco leaf, which produces poisonous gases, such as carbon monoxide, formaldehyde and cyanide that are inhaled by the smoker.

This was the key message of two Australian doctors, who are advocating for tobacco-harm reduction in their country, [...]