Unfitness

Short-term effects of smoking include unfitness, wheezing, a general vulnerability to illness, bad breath, bad skin and so on.

Among other particulars which constituted the unfitness of things in Mr Square's opinion, danger and difficulty were two.

This train of thought led the Company's Safety Directorate towards the revised standard […] of October 1993, which cemented a national scheme of testing for alcohol and drugs following safety-critical incidents or on suspicion of unfitness for duty, unannounced drugs screening for staff in safety-critical posts, a fixed standard for alcohol/blood levels, and clear guidelines for lunch breaks.