That's not the same thing, though. The argument is that holding in the vapor will cause liquid to collect in your lungs, but what about evaporation? Won't normal breathing expel the TINY amount of liquid this would cause before it ever builds up?
Taking a steamy shower would cause far more water to get into your lungs - but nobody dies from showering.
Honestly, I don't know how much it would take for a teaspoon of liquid to collect, but he was mostly warning against the other chemicals condensing and coating the lungs, such as the nicotine, the dozens of chemicals in the flavorings and the pg/vg being deposited in the lungs. When you're in the shower though, you aren't taking big concentrated breaths in and holding it for 10 seconds; you are breathing freely which allows the vapor to exit before condensing. I'll ask him about the shower thing though. I don't know how any liquid in your lungs would evaporate though, for two reasons. One being that your body does not reach boiling temperatures, and two, in order for evaporation to occur without vaporization, the air around the liquid has to be low in humidity. The lungs are a very humid environment, so evaporation would be slow and difficult, if it could occur at all. Coughing is what expels liquid that collects in the lungs, but sometimes it is not triggered for one reason or another.
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