Our population comprised 82 male technical staff. Active smoking was reported by 45.1% of participants. Nicotine dependence assessed by the Fagerstroem test was moderate to high in 40.5% of smokers. According to the NASA-TLX raw, the means of mental and physical demands were 88.8+/-13.5 and 63.6+/-24.7 respectively. Bivariate analysis showed that nicotine dependence was inversely correlated with physical work demands and positively correlated with work frustration.