That's likely the vape smoke rather than the nicotine. A studied on vapes showed that any smoke/irritant (including vapes) going through the air passageways st

That's likely the vape smoke rather than the nicotine. A studied on vapes showed that any smoke/irritant (including vapes) going through the air passageways stimulates the vagus nerve and cause a inflammation in arteries/increased heart rate/increased cardiac risks. Nicotine delivered without smoke didnt have the same effect