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According to new research from Binghamton University, State University of New York, living at higher latitudes, where there is less sunlight could result in a higher prevalence rate of obsessive compulsive disorder (OCD).
OCD is a chronic and long-lasting disorder in which a person has uncontrollable, reoccurring thoughts-obsessions and behaviors-compulsions that individual feels the urge to repeat over and over.
Individuals with OCD commonly report not being able to fall asleep until later than desired. Often times, they will then sleep in very late in order to compensate for that lost sleep, thus adopting a delayed sleep-wake pattern that may have adverse effects on their symptoms.
The delayed sleep-wake pattern may reduce exposure to morning light, thereby potentially contributing to a misalignment between internal biology and the external light-dark cycle. People who live in areas with less sunlight may have less opportunities to synchronize their circadian clock, leading to increased OCD symptoms.
This misalignment is more prevalent at higher latitudes-areas where there is reduced exposure to sunlight, these areas subsequently exhibit higher lifetime prevalence rates of the disorder than areas at lower latitudes.
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