Latitude affects Morningness-Eveningness: evidence for the environment hypothesis based on a systematic review

@article{Randler2017LatitudeAM,
  title={Latitude affects Morningness-Eveningness: evidence for the environment hypothesis based on a systematic review},
  author={Christoph Randler and Arash Rahafar},
  journal={Scientific Reports},
  year={2017},
  volume={7}
}
Morningness-eveningness (M/E) is an individual trait related to a person’s sleep-wake cycle and preference for morning or evening hours. The “environment hypothesis” suggests that M/E is dependent on environmental factors, such as latitude, mean average temperature and photoperiod. We here analyzed a large number of datasets to assess this effect based on a systematic review. Data were from a total of 87 datasets and 35,589 individuals based on 28 countries. Partial correlations correcting for… 

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