Understanding Nyctophobia: How The Fear Of Darkness Can Impact Mental Health

Medically reviewed by Melissa Guarnaccia, LCSW
Updated January 29th, 2026 by BetterHelp Editorial Team

Fear of the dark is something most people experience at some point in their lives, especially during childhood. But for some, this fear does not fade with age. Instead, it may become a persistent fear leading to severe anxiety and avoidant behavior. This condition is known as nyctophobia, a type of specific phobia characterized by an intense fear of darkness or nighttime environments. 

Nyctophobia can impact daily life, potentially interfering with sleep, putting a strain on relationships, and limiting everyday function. Although this phobia can be highly impactful, there are options for treating and managing the extreme anxiety that often accompanies a fear of the dark. In this article, we will examine the root causes and symptoms of nyctophobia and explore treatment strategies to improve mental health. 

A man in a suit sits on the floor, leaning against the wall with his eyes closed in reflection.
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Are you afraid of the dark?

What is nyctophobia? 

Nyctophobia is an intense and irrational fear of the dark. A severe fear of the dark may be classified as a specific phobia in the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5). This phobia goes beyond typical discomfort or uneasiness and may lead to severe anxiety, panic attacks, and avoidant behavior. 

An extreme fear of the dark may be caused by different things for different people. For some, this phobia may start early in childhood, persisting through adolescence and into adulthood. In other cases, it may emerge later in life, perhaps following a specific event. Understanding that nyctophobia is a real mental health condition can go a long way in offering empathy and validation to a person living with this phobia.  

What causes the fear of darkness? 

Nyctophobia does not occur randomly, and it often has roots in a person’s past experiences, psychological makeup, and environmental influences. While causes may vary from person to person, several common factors may contribute to the development of this fear.

  • Evolutionary survival factors: There may be an inherent survival element to a fear of the dark. In general, darkness limits the ability to see, which can make it challenging to detect and react to threats. Early humans were more vulnerable to predators at night, and this fear may have been hardwired as a survival instinct. 
  • Past trauma: Personal trauma, including being locked in a dark room, experiencing a natural disaster at night, or witnessing or being the victim of a crime in the dark, can create an association between darkness and danger. 
  • Anxiety or other mental health disorders: Co-occurring mental disorders, such as generalized anxiety disorder, panic disorder, or post-traumatic stress disorder, can amplify a person’s fear response. 
  • Learned behavior: Portrayals of the dark as scary by parents or the media can lead a child to internalize a fear of the dark. 
  • Lack of control or sensory information: Being in the dark removes visual cues that may help a person recognize that they are safe and oriented, potentially contributing to fear and anxiety. 

If you are experiencing trauma, support is available. Please see our Get Help Now page for more resources.

Understanding what is causing a person’s fear of the dark can help a mental health professional develop an effective plan to improve everyday life. For long-lasting anxiety reduction, it may be helpful to address the underlying cause of nyctophobia in addition to treating nyctophobia symptoms. 

Signs and symptoms

Recognizing the signs and symptoms of nyctophobia can help a person and their support network recognize the phobia sooner. Early detection may help a person reduce anxiety and other symptoms more quickly. Below, explore the physical, mental, and behavioral impacts of nyctophobia.

Physical impacts related to a fear of darkness

When confronted with darkness, individuals with nyctophobia may experience intense physiological reactions. These may include cardiovascular impacts, such as a rapid heart rate, as well as respiratory impacts, like shortness of breath. A person may also experience trembling, nausea, dizziness, and panic attacks. All of this may be the body’s reaction to what it perceives as a survival situation.

Mental health impacts

In addition to physiological impacts, a person may also experience emotional or psychological impacts on mental health. Nyctophobia can lead to overwhelming feelings, including the following: 

  • Intense fear, dread, or terror in dark environments
  • Anxiety or restlessness as the night approaches
  • Racing or catastrophic thinking, such as believing something bad will happen in the dark
  • A sense of being helpless or out of control

Behavioral impacts 

People with nyctophobia may adopt avoidant behavior to reduce anxiety connected to their phobia. For example, they may refuse to enter a dark room or go outside at night, or they may avoid social activities or travel that occurs after the sun goes down. While these behaviors may provide short-term relief, they may reinforce the phobia over time, potentially making the fear stronger and more persistent. 

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How does a fear of the dark impact daily life? 

Darkness is an unavoidable part of life, which can make it a constant source of anxiety and limitation. The impacts of nyctophobia may extend beyond the nighttime hours and may affect a person throughout the day as well. Some of the impacts nyctophobia can have on everyday life include impacting daily routines and emotional well-being. 

Nyctophobia can impact a person’s daily sleep routine, causing sleep disruption or poor sleep. People with nyctophobia may find it challenging to fall asleep without lights on, and they may wake frequently during the night due to fear. Chronic sleep deprivation due to nyctophobia can lead to fatigue, irritability, and worsened mental health symptoms

Living with a persistent fear can take an emotional and psychological toll on a person as well. Someone with nyctophobia may experience general anxiety or hypervigilance, especially at night. They may also experience shame or low self-esteem related to their fear of the dark. This may lead a person to become socially withdrawn and isolated, which can increase the risk of depression

Coping strategies for nyctophobia

Although nyctophobia can be highly impactful, coping strategies can reduce symptoms. Common strategies include a combination of mindfulness practices and self-reflection. What works for one person may not work for another, and it can be helpful to have many tools available to manage nyctophobia. 

Mindfulness practices to reduce a fear of the dark

Mindfulness practices, such as deep breathing and grounding techniques, can be useful for people who experience an intense fear of the dark. These techniques can be implemented either before an upsetting event to reduce its impact or during an event to regain control in the moment. 

Self-reflection and journaling

After experiencing an anxiety-inducing event, it may be helpful to practice self-reflection through meditation or journaling. This practice can allow a person with nyctophobia to track and monitor their responses when they feel anxious or overwhelmed by fear. It may also be an effective way to calm the mind and body during times of heightened anxiety. 

Cognitive behavioral therapy, exposure therapy, and other treatment options

For individuals seeking treatment for nyctophobia, there are therapy and medication options that may reduce anxiety and stress caused by a fear of the dark. To start, it may be helpful for a person living with nyctophobia to connect with a mental health professional to review their treatment options. A professional can evaluate clients to determine the best course of action. Below are a few common treatment options. 

Cognitive behavioral therapy for nyctophobia

Cognitive behavioral therapy (CBT) is a common and effective treatment option for people experiencing a specific phobia, such as nyctophobia. CBT generally centers around identifying and restructuring negative thought patterns to reduce anxiety. A therapist may help a person who is afraid of the dark recognize and identify irrational thoughts about darkness and reframe them. They may help a person internalize the fact that darkness is not inherently dangerous. 

Exposure therapy for phobia treatment

Exposure therapy, which is a specific type of CBT, is another common treatment implemented to manage specific phobias. With exposure therapy, a trained therapist may slowly and gradually expose their client to fear-inducing situations. For a person with nyctophobia, a therapist may start by having their client sit in a dimly lit room or visualize darkness in a safe setting. Over time, they may work up to tolerating longer periods of darkness or nighttime environments. This repetitive exposure can reduce a person’s fear response and, in some cases, empower them to overcome their fear. 

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Are you afraid of the dark?

Managing a phobia with the guidance of a mental health professional 

For a person living with nyctophobia, connecting with a mental health professional may be a good first step in reducing their fear of the dark. However, it’s not always convenient to attend in-person therapy at a brick-and-mortar office. With online therapy, sessions can occur from anywhere with a personal device and internet connection. This can enable you to get the support you deserve from the location where you feel most comfortable. 

Research shows that online cognitive behavioral therapy can effectively reduce phobia symptoms. Online therapy typically uses the same evidence-based techniques as traditional face-to-face therapy. 

Takeaway

Many people experience a fear of the dark at some point in their lives. When this fear persists past childhood, it may be a sign of nyctophobia, a specific phobia centering on the fear of the dark. Nyctophobia can negatively impact a person’s physical, emotional, and social health. Managing nyctophobia typically involves a combination of mindfulness strategies and therapy techniques, such as CBT and exposure therapy. Online therapy can be an effective way for people living with a fear of the dark to receive professional support in treating their phobia.
It is possible to overcome phobias
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