Reverse Seasonal Affective Disorder: SAD in the Summer.

Not much normal about me. Come spring and warm weather and long days of sunlight, my low grade systemic depression settles in until this time of year. I diagnose my condition about 30 some years ago, even though I'd never seen it mention in the literature. Back them I was on meds, until I developed tremors and had to give them up.
Been thinking about it for a few days now and thought I might DuckDuck-go it and there it was. So, while rare, I'm not the only one.


https://www.psychologytoday.com/us/blog/brain-babble/201501/reverse-seasonal-affective-disorder-sad-in-the-summer

Many get seasonal affective disorder in the winter—but some do over the summer.
Compared to the summer months, the days are significantly shorter, which for some can mean the onset of the "winter blues." The medical term for this is Seasonal Affective Disorder (SAD), a condition caused by a mélange of changes in our biological clocks, serotonin levels, and melatonin production, all of which affect our mood.

While many of us are familiar with SAD, there are, in fact, people who get SAD in reverse. For a small group of people, the dark days of winter don’t elicit depression but renewed vigor and improved mood.



While winter SAD is linked to a lack of sunlight, it is thought that summer SAD is due to the reverse—possibly too much sunlight, which also leads to modulations in melatonin production. Another theory is that people might stay up later in the summer, throwing their sensitive circadian rhythms for a loop. Interestingly, summer SAD and winter SAD seem to be prevalent in areas that are particularly prone to warmer summers. In other words, people in the southern U.S. tend to experience summer SAD more than those in the north, and vice versa.