Psychology says people who always sleep with the door closed-even when they live alone-share these 7 traits that all trace back to one thing from childhood - Silicon Canals

"Ever notice how some people religiously close their bedroom door every single night, even when they're home alone? I used to think my roommate in college was just quirky about it until I realized I do the exact same thing. There's something about that closed door that feels essential, like leaving it open would somehow throw off the entire night."

"Door-closers typically exhibit what psychologists call a strong need for psychological boundaries. This isn't just about physical space; it's about creating a mental barrier that signals "this is my sanctuary." According to research published in the Journal of Environmental Psychology, people who maintain strict physical boundaries in their living spaces often developed this trait as children when they needed to create emotional safety zones."

Many people habitually close their bedroom door each night to create a private, controllable sanctuary. This behavior often reflects a heightened need for psychological boundaries formed in childhood, such as sharing a room or living in a chaotic household. Research in the Journal of Environmental Psychology links strict physical boundaries at home to early emotional safety needs. A closed door communicates ownership and control over who enters the space. Personal anecdotes note using a closed door to restore consistency after family disruption. Door-closers also tend to have greater sensory sensitivity to minor environmental noises.

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