Does the moon phase affect fibromyalgia symptoms?
Many people with fibromyalgia report that their symptoms worsen in line with the phases of the moon, especially during a full moon. This has sparked both curiosity and debate: Is there scientific evidence that the full moon actually affects fibromyalgia patients, or is it a subjective experience?
Helfi has implemented full moon indicators in its calendar feature to help users identify possible connections between the phases of the moon and their symptoms. This was something we received feedback on in user insights before Helfi was developed, many felt that the full moon affected their symptoms. In this article, we take a closer look at the research, patients’ experiences, and how this information can be used to improve self-care.
Can the phases of the moon affect our bodies?
The moon has long been associated with biological rhythms. Tides are governed by the moon’s gravitational forces, and some studies suggest that the phases of the moon can affect both sleep and hormone levels in humans. The question is whether this influence is strong enough to exacerbate symptoms in people with fibromyalgia.
Several research studies have examined how the moon affects sleep and pain perception:
Sleep disturbances: A study published in Current Biology (Cajochen et al., 2013) found that participants slept worse around the full moon, with reduced melatonin production and shorter periods of deep sleep. Poor sleep is known to exacerbate fibromyalgia symptoms.
Pain sensitivity: Another study from The Journal of Pain (Cordova et al., 2016) suggested that pain sensitivity may be higher during certain lunar phases, but the researchers did not find a direct causal relationship.
Hormonal changes: Some theories suggest that the moon may affect cortisol levels and other hormones that play a role in pain perception and inflammatory responses. However, this has not been sufficiently documented in research.
Patients’ experiences: Full moon and fibromyalgia
Many fibromyalgia patients find that their symptoms worsen during a full moon. Commonly reported symptoms include:
- Increased pain intensity
- Sleep problems and insomnia
- Increased fatigue
- Headaches and migraines
- Increase sensitivity to light and sound
These experiences may be due to several factors, including changes in sleep patterns, psychological expectations (the placebo effect), and individual biological differences.
How can this insight be used?
For people with fibromyalgia, it can be helpful to keep a diary of symptoms in relation to the moon phases. Helfi has included full moon indicators in its calendar feature, making it easier to identify patterns over time. By recording daily symptoms and using the notes field to log how the moon phases affect the body, it becomes easier to spot connections and trends, thus gain insight into what contributes to good or bad days.
Tips for managing symptoms around the full moon:
- Sleep optimization: Ensure a dark, quiet bedroom and limit screen time before bed.
- Relazation: Meditation, yoga, or light breathing exercises can help reduce stress and tension.
- Regular sumptom tracking: Use the Helfi calendar to identify patterns and plan self-care measure ahead of the full moon.
- Diet and hydration: Avoid caffeine and alcohol in the evening, and make sure to stay hydrated.
Conclusion
Although research has not yet provided clear answers on whether the full moon directly affects fibromyalgia symptoms, it is evident that many patients perceive a connection. Helfi allows users to track their own symptoms in relation to the moon phases, which can provide valuable insight into how the body reacts.
Further research is needed to understand the exact mechanism behind these experiences, but for now, being aware of the moon phases can be a useful tool in managing fibromyalgia.
References:
📖 Cajochen, C., et al. (2013). "Evidence that the Lunar Cycle Influences Human Sleep." Current Biology.
📖 Cordova, A., et al. (2016). "Pain Sensitivity and Lunar Phases." The Journal of Pain.




