We have no answer for this question, unless you chew tobacco or use snuff.
Nicotine is addictive. Your body thinks it likes it.
This is known as second-hand smoke.
Electronic cigarette is an electric device that contains nicotine and nicotine free e liquid, it satisfied our hunger of smoke without harm. It doesn't have second hand smoke.
sidestream smoke contains twice as much tar and nicotine
sidestream smoke contains twice as much tar and nicotine
Cigarette smoke is harmful to most living beings as they have negative effects on certain body parts. Mosquitoes are either affected by traces of cigarette smoke or leftover nicotine in a smoker's bloodstream and would have adapted to avoid them.
You shouldn't ... the nicotine gets into the bloodstream and may effect the test results. Fasting is just that ... fasting on everything whether it is consumed or smoked.
The nicotine from smoking enters the bloodstream and could affect some medications and possibly alter their effectivity. Best to consult with a medical professional for the right answer.
The nicotine test is used to evaluate the smoking habits of a person.
Nicotine
Nicotine is a highly addictive substance that occurs naturally in tobacco.
They are nicotine stains.