For the past 366 days I’ve kept a mood and sleep diary (thanks to moodtracker.com). It might have produced some interesting data for a school maths project. But since I’ve obliterated all memory of statistics, here’s a simple graph I’ll keep in mind:

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9 hours Good. 2 and 13 hours Bad.

An updated graph: When I looked at that graph last night I thought it wasn’t telling much of the story. (For a start I was surprised the figures were not more positive, after all 22nd March 2011 was after starting mirtazapine. The graph would have been more exciting if I’d kept it in the preceding months!) But averages are averages they’ll make almost any bump look flat.  This graph, which shows all the days, shows the relationship is a little bit more chaotic! Though the trend line did still find the pattern of my first graph:

One thing to conclude is a happier day requires 6+ hours sleep, but sleep on its own won't make that happen. Shucks that's too easy I guess.

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