Research
Mixed
Individuals with 'morningness' personality traits and older age experience greater difficulties adjusting to shift work and have higher rates of health problems.
If you are naturally an early riser ('morning person') or are older, night shifts will likely be harder on you. You may experience more sleep problems and health issues. Consider discussing schedule adjustments with your employer if possible.
ModerateQualifiesMEDIUM confidence
Older age and 'morningness' personality are related to higher than average problems in adjusting.
Why this rating
Based on correlational studies and surveys cited in the review.
Source
Psychological and psychophysiological effects of shift work.
Torbjörn Åkerstedt · Scandinavian Journal of Work Environment & Health · 1990
DOI 10.5271/sjweh.1819
narrative_reviewCited 296×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
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