I've switched to hand-rolled cigarettes

It is said the filters in rolled cigarettes (if you choose to use them) make you more a candidate for cancer than a "normal" cigarette. Also, it should be clear to everyone that rolling tobacco is much stronger than that in your run-of-the-mill tastes-like-paper Marlboro cig.

Of course, when I think about all the extra chemicals they treat manufactured cigarettes with, I DO think rolled cigarettes are actually more healthy than manufactured ones. Of course that doesn't mean you can smoke a packet of tobacco every day and be less likely to have a black chunk where your lung used to be after a decade or two.

Hand-rolling is still more fun, though.

On the contrary, the vast majority of the human race has not been smoking tobacco for "thousands of years". Tobacco is native to the New World, and was not known in the Old World until Columbus. Therefore the "Aborigines... the Arabs... the Jews in Jesus' time... the Egyptians and Babylonians and Sumerians and medieval people" certainly weren't smoking tobacco (whether they were smoking something else is another question, but I doubt it). The first Europeans in the New World, in fact, found the native practice of rolling and smoking tobacco strange and disgusting.

It should also be noted that the tobacco smoked by Native Americans for centuries bears little resemblance to the stuff you puff today. Wild tobacco has a low nicotine content, and only through many years of selective breeding (rapidly accelerated in the last century) has it been brought to today's high levels. The same is true of marijuana and THC.

There is absolutely nothing natural about smoking - tobacco or otherwise.