Tolerance occurs the first time you use a drug. t or f

False
It is new and alien to the body one you experience the effects of the drug and like the feeling it gives you

You do it againg and you start to build up tolerance

For example
The first time a non smoker lights a cigar he chokes and cannot breathe
The next time he does it he develops more if a tolerance

Ten years later he is an older more sickly version of a smoker with amazing tolerance to the drug