Observational crossover study reveals seasonal variations in sleep among Arctic shift workers, indicating significant influence of light conditions.
Introduction: Studies suggest that seasons may influence sleep, though findings are inconsistent. In Arctic settings, the extreme light conditions including polar night (dark season) and midnight sun (light season) may have a distinct impact on the relationship between shift work and sleep. This observational crossover study aimed to examine seasonal variations in sleep among Arctic shift workers using both subjective and objective sleep measures.
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Moen et al. (2025) studied this question.
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