30 Causes of Dreams and Nightmares (According to World Mythology)

It is believed that when an individual’s homeostatic system fails and psychological homeostasis is disrupted, nightmares are deployed to extinguish anxiety that has accumulated throughout the day. Some psychologists believe that nightmares help people process traumatic events. If nightmares occur frequently and impairs social and occupational function, they can become a disorder.

Nightmares are frightening and mysterious, so it is no wonder that people around the world and throughout history have sought out explanations for them. This infographic explores nightmare mythology from around the world, nightmare meanings in different cultures, and nightmare creatures that plague sleep.

Causes of Dreams and Nightmares

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Logan Block

Logan Block

Logan is the content director of Sleepopolis, which means he not only reviews new mattresses every week, but also curates all the comparisons, best of pages, and video guides on the site. He takes a straightforward, honest approach to his reviews and endeavors to give viewers an objective look at each new product he tries out. Logan’s perfected his method over the course of personally testing over 100 different mattresses, so he’s not only able to discern the overall vibe of a specific bed, but to contextualize its feel within the bed-in-a-box market as a whole. Needless to say, his sleep knowledge runs deep, and he loves nothing more than sharing that knowledge with his readers. When he’s not hopping on a new bed or working with our editorial team to whip up an engaging sleep education guide, you can find him reading books on world history, walking his dog Pepper, or searching for the best cheeseburger in New York City.
Logan Block

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