Chemical Exposure: Vaping liquids contain a variety of chemicals, including potentially harmful substances
For example, you may experience worsened nausea or vomiting
Why First-Time Users Get Hit the Hardest First-time nicotine users experience dramatically more intense dizziness and head rush because their bodies havent developed any protective tolerance mechanisms
Voltage Switching,Voltage Display,Memory Mode SettingsLong press the button to cycle voltage switching between 5V/9V/12V/15V/20V,Short press the button to turn off the display,Double click the button quickly to switch between memory mode and non memory mode settings,convenient for multiple choices,Memory mode can save the recently set voltage
Finally, we substituted smoking duration for cigarette pack-years in an additional sensitivity analysis as previous research has found that smoking duration may be a better indicator of smoking history than pack-years of smoking 20