So we've all read that cigarettes contain 4000+ chemicals and by-products. And we know that nicotine is addictive and the basis of why cigs are so highly addictive. But something strange I've noticed is that when I'm solely using an e-cig(meaning no analogs daily), that my cravings to nicotine are not as intense as with a cig. The after-meal, with-coffee, after this before that, etc mental cravings aren't as extreme. If I can't vape that morning, I can go without for a few hours. The addiction is more akin to caffeine addiction. So is it some other chemical dependency? Anyone with a good scientific explaination or anyone totally disagree?