That’s why We now have to change your unconscious brain—your psychological associations with cigarettes, your daily rituals and routines, your feeling of pleasure and empowerment—in an effort to quit smoking. When incomplete combustion happens, not all the things is burned. Smoke is a collection of those small unburned particles. https://broadfar.com/non-combusted-cigarettes-a-safer-alternative-or-just-a-myth/