I thought this was pretty interesting.

My number of posts peaked in May and June, then leveled off, and began to fall until December, when the days are at their shortest. I made very few posts in November and December and many of those were reblogs or very short (I can’t show you that on the graph, you will have to take my word for it or check for yourself). This month they are rising again. This coincides with the chart below which I made a few months ago. It shows the level of my moods at different times of the year. My mood begins to decline as early as July, and starts to improve in January. It’s the lengthening and shortening of days my brain and body reacts to, not the cold or heat.