Can't abide it myself but here's an interesting article about the bloke that invented them. He's responsible for more than 100,000,000 deaths in the 20th century alone. http://www.bbc.co.uk/news/magazine-20042217
You realise that absolute B******s.......cigarettes were perfectly safe...in fact often prescribed by the medical profession until the 1960's...is it something they started adding then?