Less screen time and more physical activity is associated with more stable sleep patterns among Icelandic adolescents
| Autor: | Hrafnkelsdottir, Soffia M., Brychta, Robert J., Rognvaldsdottir, Vaka, Chen, Kong Y., Johannsson, Erlingur, Gudmundsdottir, Sigridur L., Arngrimsson, Sigurbjorn A. |
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| Zdroj: | In Sleep Health: Journal of the National Sleep Foundation October 2020 6(5):609-617 |
| Databáze: | ScienceDirect |
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