‘I keep thinking it’s Wednesday’: Why do we find it hard to keep track of days of the week?

19 August 2015

Mondays really do make us blue, Fridays are the happiest day of the working week and ‘dull’ midweek days are easily muddled up  – and it’s all due to how the artificial seven-day cycle we live by shapes the way we think, new research has shown.
http://www.sciencedaily.com/releases/2015/08/150819172211.htm