IMHO, all this worrying about health is. Just sit back with ya pipe and a glass of Scotch and relax! Instead of getting your blood pressure up while worrying about things like this.
We all have to die eventually, and to be honest with the amount of electrical wiring, wireless waves and electromagnetic radiation, ozone levels, global warming, car and factory exhausts, deforestation, flooding, mutations of viruses and bacteria, resistance against drugs, DNA degradation and the amount of psychos running around randomly killings dozens of people even in prep schools, living a month more or less because you enjoyed whatever product (alcohol or smoke) doesn't matter a damn thing ;-)