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Observations of age-related differences in neurobehavioral performance in a 12-hour shift system

Research has indicated that individuals may become less tolerant to shiftwork as they age. This study observed the effect of age on neurobehavioral performance in shift workers working a 12-h shift schedule. Performance data was collected for a 14-day period, from 20 subjects. Analyses were performed to identify significant differences relating to age. Older subjects’ performance declined faster during night shifts than their younger counterparts, indicating a more profound effect of night work on performance in older workers. However, larger investigations are required to support generalized statements about the impact of age on performance.