I never thought of candles being a cause of lung cancer! Churches, especially those old ones are huge, high ceilings, and all the smoke tends to "float " up. I wonder if before stating that it was so dangerous for the priest, and servors if they had gathered any statistics that the incidence of lung cancer was higher in priests that used incense or served in churches that burn candles. When I was growing up, lighting candles to symbol prayers for a loved one, etc, alter candles, incense, was very common. Those priests that are retirement age now , do they suffer with lung cancer in large numbers?
I also think it is interesting that candles are very popular for use in the home now, they are suppose to bring relaxation, mood enhancement etc. They sell them everywhere even the grocery store. Now in our houses, the rooms are smaller, especially most of our bathrooms. If these are emitting all those toxins, even if every one quits smoking but continues "lighting" up candles , in the future we may be in big trouble. Donna G