The influence of the lunar cycle on spontaneous deliveries in historical rural environments

Marco‐Gracia, Francisco J.

doi:10.1016/j.ejogrb.2019.02.020

Cited by 16 publications

(10 citation statements)

References 27 publications

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“…Doğum, uyku, abdominal aorta ve intrakraniyal anevrizma rüptürü, akut koroner olaylar, gastrointestinal kanama, çocuklarda ve yetişkinlerde psikiyatrik nedenli başvurular, cerrahi sonrası kanama ve komplikasyonlar, inme, epileptik ve psikojenik nöbet, böbrek nakli sonuçları, travma nedenli acil başvuru sıklığı, ay döngüsü ile ilişkisi araştırılan başlıca durumlardır. 3,4,[19][20][21][22][23][24][25][26][27][28][29][30] Bu çalışmaların bazılarında ay döngüsü ile hastalık sıklığı arasında ilişki tespit edilmiş olsa da pek çoğunda herhangi bir ilişki tespit edilmemiştir. Ay döngüsünün insan sağlığı üzerine etkisinde, temelde dolunay döneminde oluşan değişiklikler dikkate alınmaktadır.…”

Section: Discussionunclassified

“…24 Doğum ile ay döngüsü arasındaki ilişkiyi inceleyen bir araştırmada, 120 yıllık bir dönemde yapılan incelemede, ayın evreleri ila doğum zamanı arasında bir ilişki tespit edilmemiştir. 22 Ay döngüsünün doğum zamanını etkilediğini bildiren çalışmalarda, bu ilişki melatonin seviyelerindeki ay döngüsüne bağlı değişikliklerle açıklanmaktadır. Dolunay evresinde artan ışık nedeni ile melatonin seviyelerinin düştüğü gösterilmiştir.…”

Section: Discussionunclassified

“…Ancak bu teori, yapılan bu çalışmada desteklenmemektedir. 22 Cajochen ve ark.nın yapmış oldukları çalışmada, dolunay döneminde derin uykunun göstergesi olan NREM döneminde elektroensefalografide delta dalgalarında %30 azalma tespit edilirken, uykuya dalış süresinde 5 dk, toplam uyku süresinde ise 20 dk azalma olduğu gösterilmiştir. Bu çalışmada, dolunay döneminde gece ölçülen melatonin seviyesinde de azalma olduğu belirtilmektedir.…”

Section: Discussionunclassified

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The Relationship Between Ear Nose Throat Emergencies and Meteorological Events and the Moon Cycle

Akdoğan¹,

Hızal²,

Babakurban³

et al. 2020

KBB ve BBC Dergisi

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Enfeksiyöz ve travmatik nedenler dışındaki acil kulak burun boğaz başvuruları ile meteorolojik faktörler ve ay döngüsü arasındaki ilişkinin değerlendirilmesi amaçlanmıştır. Gereç ve Yöntemler: Hastanemiz veritabanından Ocak 2013-Ekim 2015 tarihleri arasındaki Kulak Burun Boğaz acil başvuru nedenleri belirlenmiştir. Aynı tarih aralığındaki günlük sıcaklık (maksimum, minimum ve ortalama) (Co), günlük nem (maksimum, minimum ve ortalama) (%), günlük maksimum ve ortalama rüzgâr hızı (m/dakika), rüzgâr yönü (derece) ve günlük hava basıncı (maksimum, minimum ve ortalama) (hPa) değerleri ve ayın evreleri olan yeni ay, ilk dördün, dolunay ve son dördün dönemleri tespit edilmiştir. Bulgular: Toplamda 1034 günlük süre boyunca vertigo, epistaksis ve Bell paralizisi nedeni ile 11.898 acil başvurusu olduğu ve bu başvuruların tüm KBB başvurularının %10,25'ini oluşturduğu tespit edildi. Benign paroksismal pozisyonel vertigo (BPPV) tanısı alan hastalar (n=977), vertigo yakınması olan hastaların %10,2'sini oluşturuyordu. BPPV başvuru sıklığı ile tüm basınç ve nem verileri arasında pozitif korelasyon, günlük sıcaklık değerlerinin tümü ile ise negatif korelasyon olduğu tespit edildi. Vertigo ile başvuran tüm hastalar değerlendirildiğinde, vertigo ile günlük minimum basınç, günlük maksimum nem ve ortalama nem değerleri için pozitif korelasyon tespit edilirken; tüm günlük sıcaklık verileri arasında ise negatif korelasyon mevcuttu. Günlük maksimum rüzgâr hızı ve günlük ortalama rüzgâr hızı ile vertigo ve BPPV başvuru sıklığı arasında negatif korelasyon tespit edildi. Epistaksis sıklığı ile günlük maksimum rüzgâr hızı arasında da negatif korelasyon tespit edildi. Ay evreleri ile hastalık sıklığı arasında istatistiksel olarak anlamlı ilişki tespit edilmedi. Sonuç: Bu çalışmada, meteorolojik faktörlerin vertigo, BPPV ve epistaksis ile ilişkili olduğu ortaya konmuş, ancak ay döngüsü ile belirtilen durumların sıklığı arasında herhangi bir ilişki tespit edilmemiştir. Bu konuda Türkiye'de daha önce yapılmış bir çalışma mevcut değildir. Çalışmamızda elde edilen bulgular, literatürdeki çalışmaları büyük ölçüde destekler niteliktedir.Anah tar Ke li me ler: Vertigo; benign paroksismal pozisyonel vertigo; Bell paralizisi; epistaksis; meteorolojik faktörler; ay döngüsü ABS TRACT Objective: The aim of this study was to evaluate the relationship between otorhinolaryngologic emergencies except infectious and traumatic causes and meteorological events and the moon cycle. Material and Methods: Otorhinolaryngologic emergency applications except for trauma and infection from January 2013-October 2015, were determined from database of our hospital. Daily temperature (maximum, minimum and average) (Co), daily humidity (maximum, minimum and average) (%), daily maximum and average wind speed (m/min), wind direction (degree) and daily air pressure (maximum, minimum and average) (hPa) values and the phases of the new moon (first quarter, full moon and last quarter) were also determined between the same dates. Results: There were 11.898 emergency applications du...

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Section: Discussionunclassified

See 1 more Smart Citation

The Relationship Between Ear Nose Throat Emergencies and Meteorological Events and the Moon Cycle

Akdoğan¹,

Hızal²,

Babakurban³

et al. 2020

KBB ve BBC Dergisi

View full text Add to dashboard Cite

show abstract

“…Recently, Marco-Gracia performed a retrospective cohort analysis on 23,689 spontaneous deliveries within the home for 1484 lunar cycles between the years 1810 and 1929 in rural Spanish villages. The author showed that there was no pattern with which to link lunar phases with the frequency of births in women who did not have electricity in their daily lives and concluded that the belief in the relationship between lunar phases and human births is simply a myth [22].…”

Section: Discussionmentioning

confidence: 99%

“…On the contrary, no difference was observed in the frequency of child births during various phase of lunar cycle [3]. A different analysis also demonstrated that there was no predictable influence of the lunar phases on the frequency of child births [4]. In sheep, similarly, the distribution of lambing dates did not differ among the various phases of the lunar cycle [5].…”

Section: Introductionmentioning

confidence: 99%

Daily calving frequency and preterm calving is not associated with lunar cycle but preterm calving is associated with weather conditions in Japanese Black cows

et al. 2019

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Several external factors including lunar cycle and weather conditions might be associated with calving conditions. Our objective here was to determine the effects of lunar cycle and weather conditions on calving frequency and the occurrence of preterm calving in Japanese Black cows. Calving records were obtained from 905 farms in Miyazaki Prefecture, Japan. Data were collected from 41,116 calvings. We conducted two studies: Study 1 investigated the effects of lunar cycle and weather conditions on daily calving frequency (DCF) with the observational unit of each day and Study 2 investigated those effects on the occurrence of preterm calving with the observational unit for each calving. Preterm calving was defined by whether or not a cow calving before 280 days of gestation, lower 10th percentile of gestation length of the collected data, and by whether or not a cow calving before 289 days of gestation, median of the gestation length. For Study 1, lunar cycle was not associated with DCF in all cows, in only primiparous cows and in only multiparous cows. As well as lunar cycle, weather conditions such as temperature, diurnal temperature variation, the temperature-humidity index, precipitation amount, barometric pressure, relative humidity and solar radiation, were also not associated with DCF. For Study 2, lunar cycle phases were not associated with the occurrence of preterm calving. However, preterm calving was associated with all of the weather conditions (P < 0.05) except for precipitation amounts and solar radiation. Temperature, the temperature-humidity index and relative humidity were positively associated with the occurrence of preterm calving. In contrast, diurnal temperature variations and barometric pressure were negatively associated with the occurrence of preterm calving. In conclusion, the lunar cycle was not associated with DCF and preterm calving, but the weather conditions were associated with preterm calving.

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Temporal patterns of weekly births and conceptions predicted by meteorology, seasonal variation, and lunar phases

Gudziunaite

Moshammer

2022

Wien Klin Wochenschr

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Summary Background Data reporting the number of births given by women resident in Vienna for each week between 1999 and 2019, and the duration (in weeks) of their pregnancies, were used to estimate the week of conception. When preliminary examinations detected cyclical patterns for births and conceptions, a series of Poisson regressions for births and conceptions were performed to assess whether these cycles could be associated with lunar or solar phases. Methods To that end 2 sine-cosine functions, 1 with a wavelength of 1 year (365.25 days) and 1 with a wavelength of 29.529 days, the latter resembling the average length of a lunar cycle, were constructed. In addition, also average weekly temperatures were included in the models. Results Same week temperature was a strong non-linear predictor for both births and conceptions. Extreme temperatures, especially hot temperatures, increased the number of births while the numbers of successful conceptions were decreased by extreme temperatures. Regarding annual variation in conceptions, the lowest values were found in May and the highest in late autumn and early winter. Therefore, the highest numbers of births are observed in the summer. As per lunar variations, the highest numbers of conceptions occurred at the full moon and the highest numbers of births at the waxing crescent to first quarter moon. Discussion The latter results should be treated with caution, as they are not hypothesis driven. Furthermore, literature reports on this topic are conflicting. Nevertheless, these findings will be useful in further analyses examining air pollution effects.

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The influence of the lunar cycle on spontaneous deliveries in historical rural environments

Cited by 16 publications

References 27 publications

The Relationship Between Ear Nose Throat Emergencies and Meteorological Events and the Moon Cycle

The Relationship Between Ear Nose Throat Emergencies and Meteorological Events and the Moon Cycle

Daily calving frequency and preterm calving is not associated with lunar cycle but preterm calving is associated with weather conditions in Japanese Black cows

Temporal patterns of weekly births and conceptions predicted by meteorology, seasonal variation, and lunar phases

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