Nyctophobia is a phobia characterized by a severe fear of the dark. It is triggered by the brain’s disfigured perception of what would, or could, happen when in a dark environment. It can also be temporarily triggered if the mind is unsteady or scared about recent events or ideas, or a partaking in content the brain considers a threat (examples could include indulging in horror content, witnessing vulgar actions, or having linked dark environments to prior events or ideas that disturb the mind).