Does the number of calls to emergency services increase during a full moon?



There has long been a belief that the occurrence of a full moon leads to an increase in unusual behavior and accidents. One area where this belief is particularly prevalent is the field of emergency services, where it is commonly thought that there is a surge in calls during nights with a full moon. In this article, we will explore the validity of this claim by examining scientific studies, analyzing statistical data, and considering the possible psychological and physiological factors that could contribute to such a phenomenon.

The Influence of the Lunar Cycle on Human Behavior

Prior to delving into the specific topic of emergency calls, it is important to understand the underlying theories and evidence surrounding the influence of the lunar cycle on human behavior.

1. The Moon’s Effect on Sleep Patterns

Research has suggested that the lunar cycle may have a subtle impact on human sleep patterns. A study conducted by scientists at the University of Basel found that participants experienced a decrease in sleep quality and an increase in sleep disturbances during nights with a full moon. This disruption in sleep could potentially lead to heightened restlessness and irritability, which might indirectly contribute to an increase in emergency calls.

2. The Moon’s Effect on Mental Health

Several studies have explored the potential link between the lunar cycle and mental health. One such study conducted by researchers at the University of Gothenburg found a small but significant increase in psychiatric emergencies during full moon nights. However, it is worth noting that the overall effect size was relatively small and more research is needed to establish a definitive connection.

Analyzing Emergency Call Data

To determine whether there is indeed a surge in emergency calls during full moon nights, it is essential to analyze relevant data collected by emergency services.

1. Statistical Analysis of Emergency Calls

A comprehensive analysis of emergency call data from multiple regions would provide valuable insights into any potential correlation between the lunar cycle and call volume. By examining data from hospitals, police departments, and fire stations, statisticians can identify any patterns or anomalies that coincide with full moon nights.

2. Case Studies from Emergency Service Providers

Interviews and case studies with emergency service providers can offer firsthand accounts of their experiences during full moon nights. By documenting their observations and comparing them with data, we can gain a deeper understanding of whether there is a genuine increase in emergency calls during these periods.

The Psychological Factors at Play

While the influence of the lunar cycle on human behavior is still a subject of debate, there are several psychological factors that could potentially contribute to an increase in emergency calls during full moon nights.

1. The Werewolf Effect

The concept of the “werewolf effect” refers to the popular belief that full moons can trigger feelings of aggression and impulsivity in some individuals. This perception, although not supported by scientific evidence, may lead to an increased likelihood of conflicts and accidents, resulting in more emergency calls.

2. Confirmation Bias

Confirmation bias is a cognitive bias that can influence the way people interpret and recall information. If individuals already believe that full moon nights are associated with an increase in emergency calls, they may pay more attention to such incidents during these periods and subsequently overestimate their frequency.

Frequently Asked Questions (FAQs)

1. Are there any scientific studies that support the idea of more emergency calls during full moons?

Yes, several studies have explored this topic. For example, a study published in the journal Emergency Medicine Australasia found a slight increase in emergency department presentations during full moon nights.

2. Is there a consistent pattern across different countries and cultures?

Research on this topic has been conducted in various countries, but the findings are not consistent. Some studies have reported an increase in emergency calls during full moon nights, while others have found no significant correlation.

3. Could other factors, such as holidays or weekends, contribute to the increase in emergency calls?

Yes, it is important to consider other factors that could influence call volume. Holidays and weekends, for example, are known to be associated with higher rates of accidents and injuries, which could potentially overlap with full moon nights and contribute to the perceived surge in emergency calls.

4. What measures can emergency services take to handle potential surges in calls during full moon nights?

Emergency services can prepare for potential surges in calls by increasing staffing levels, improving coordination between different departments, and implementing efficient triage systems to prioritize cases based on severity.

5. Can the belief in a full moon’s influence on emergency calls be purely psychological?

While psychological factors, such as confirmation bias, may contribute to the perception of increased emergency calls, it is essential to consider objective data and scientific evidence when evaluating this phenomenon.

6. Is there a consensus among experts regarding the influence of full moons on emergency call volume?

No, experts’ opinions on this matter vary. While some experts believe that there is a genuine increase in emergency calls during full moon nights, others argue that it is a mere myth perpetuated by cultural beliefs and confirmation bias.


Despite widespread beliefs about the influence of full moons on emergency call volume, the scientific evidence remains inconclusive. While some studies suggest a potential correlation, others have found no significant increase in emergency calls during full moon nights. It is crucial to approach this topic with a critical mindset, considering both scientific research and the psychological factors that could contribute to the perceived surge in calls. Further studies are needed to provide a definitive answer to this intriguing question.

Rate article
Add a comment