E-cigarettes have never been reviewed nor approved by the FDA
Lets dive in Why Do We Gain Weight When Quitting Smoking
And there are a couple of visitors, sketchy and unsettling
The menthol is added, to increase addictiveness. Under the [FDA] rule as proposed, tobacco companies could evade the intent of the rule and continue to add menthol to cigarettes as an ingredient, additive, or constituent to maximize their addictiveness if they simply stopped calling them menthol cigarettes, the group of professors wrote
When you quit, this cycle is broken, allowing your blood vessels to relax and widen, and your blood to flow more freely
Not only that, it can help keep the leather smell fresh