Why You Can't Sleep Early?

Why You Can't Sleep Early Last night you told yourself you'd be asleep by eleven. At one in the morning you were still wide awake. When scientists measured how people sleep with no clocks and no electric light, the thing everyone calls a bad habit turned out to have been a job. 📚 Key sources ▸ Samson et al. 2017, Proceedings of the Royal Society B: https://doi.org/10.1098/rspb.2017.0967 ▸ Roenneberg et al. 2004, Current Biology: https://doi.org/10.1016/j.cub.2004.11... ▸ Packer et al. 2011, PLoS ONE: https://doi.org/10.1371/journal.pone.... ▸ Wiessner 2014, PNAS: https://doi.org/10.1073/pnas.1404212111 ▸ Patke et al. 2017, Cell: https://doi.org/10.1016/j.cell.2017.0... #nightowl #sleep #ancienthumans #evolution #science