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Summer Seasonal Affective Disorder often causes insomnia and anxiety in those depressed by intense heat and sunshine, experts say.

Medical experts link Summertime Seasonal Affective Disorder to the change in seasons, driving insomnia, agitation and intense sadness. It’s more common in hotter climates like Arizona, with its string of triple-digit temperatures, experts say. Heat, light, circadian rhythms and even the empty streets during a sizzling day could be triggers. Read more»