what happens when you stop smoking cigarettes timeline Health benefits of quitting smoking:

That changed to Warning: Cigarette smoking is dangerous to health and may cause death from cancer and other diseases in 1967, then Warning: The Surgeon General has determined that cigarette smoking is dangerous to your health in 1969

High-Def Digest

Another study using an air-liquid interface (ALI) to assess the cytotoxic effects on human bronchial epithelial cells, showed that IQOS exposure induced higher cytotoxicity (reduced metabolic activity) than e-cigarettes or air controls but lower than combustible cigarettes 22

Many smokers enjoy the lighter taste and refreshing aftertaste, especially when combined with menthol