The 599 chemicals in cigarettes is only the first part of the story. Once combusted, these 599 chemicals turn into 3,000 - 4,000 compounds, many of which are far more dangerous than those they started out with. For certain, there are more than 100 compounds that are carcinogenic and/or chemicals which substantially enhance the addictiveness of nicotine via enhanced nicotine uptake. The faster you can get nicotine to the brain, the greater the addictiveness. Analogs take about 5 seconds for nicotine and other chemicals to reach the brain. Vaping, due to a completely different mechanism of action takes about 30 seconds for nicotine to reach the brain, making them far less addictive.
The mechanism of action and uptake in the patch, for example, is so slow, that the Patch is not even considered addictive or habit forming. Once one switches to vaping exclusively, these differences in uptake makes cutting back on nicotine, or giving up nicotine entirely, substantially easier than quitting smoking. So, as an interim step, vaping allows us to quit smoking, and to eventually quit all nicotine, if we choose, far easier than quitting smoking with or without NRT products. I have found it quite easy to reduce my nicotine intake from 3+ packs of American Spirit Black per day to only about 12 mg/ml of nicotine in my vaping. This is a substantial reduction in both nicotine and and dependence, with vastly better health as a result.
I felt like I had a death sentence before, particularly having lost both my Mother and younger sister to smoking/cancer. Now I feel like I may have a chance at avoiding this horrible illness by vaping, and not smoking. I am so very thankful to ECF, my friends here, and all our members together with our vape gear manufacturers for everything vape related that enabled me to now be smoke free for one year [coming soon], (January 2013 quit date). All the best for a great 2014!