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You dont even have to be a smoker to be susceptible to these health conditions

Sometimes loading it up with cream and sugar isnt even enough
Typical cut-off levels for cotinine detection are: Urine: 200 ng/mL Saliva: 1014 ng/mL Blood: 10 ng/mL However, labs may adjust thresholds depending on the population and purpose (e.g., workplace, clinical, or insurance testing)

A., Adams, J
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Over time, more nicotine is required to achieve the same dopamine effect, and thus their tolerance increases, making it incredibly difficult to quit even if they want to
