Shift work and age in petroleum offshore industry.

Shift work is associated with sleep and health problems. Tolerance to shift work is reported to decrease with age. Shift work tolerance should be considered in different shift work populations. The aim of the study was to examine the relationship between age, shift work exposure, shift type, and morningness and sleep/health problems in oil rig shift workers.A total of 199 workers participated. They worked either two weeks of 12-h day shifts (n =...