Meteorologic factors and subjective sleep continuity: a preliminary evaluation

Pandey, Juhi; Grandner, Michael A.; Crittenden, Crista N.; Smith, Michael T.; Perlis, Michael L.

doi:10.1007/s00484-004-0227-1

Cited by 21 publications

(16 citation statements)

References 7 publications

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“… 5 , who found differences of 20 and 25 min using objective sleep measures obtained from electroencephalography (EEG) monitoring under confined laboratory conditions in 33 adults measured for two nights and 47 adults measured for six consecutive nights, respectively. Other researchers have investigated this without finding an influence of the lunar cycle on human sleep 19 , 23 – 25 . Binkley et al .…”

Section: Discussionmentioning

confidence: 99%

Physical activity, sleep duration and metabolic health in children fluctuate with the lunar cycle: science behind the myth

et al. 2015

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Behaviours of several animal species have been linked to lunar periodicity. Evidence for such links in humans is weak; however, recently, shorter sleep duration was reported around full moon in two small samples of adults. As restrictions in sleep duration have been shown to adversely affect glucose regulation and physical activity to improve glucose regulation, one could speculate that cardiometabolic risk factors might also be affected by the lunar phase. We retrospectively examined 795 Danish children, aged 8–11 years, with more than 13 000 24-h accelerometer recordings of activity and sleep as well as 2000 measurements of different cardiometabolic risk factors, including insulin sensitivity, appetite hormones and blood pressure, during nine lunar phases. During the period around full moon, children were 5.0 and 3.2 min per day less active, slept 2.4 and 4.1 min per night longer, had 0.03 and 0.05 higher homeostatic model assessment of insulin resistance and 0.6 and 0.8 mmHg higher mean arterial blood pressure compared with days around half moon and new moon, respectively (all P ≤ 0.02). Furthermore, ghrelin was lower and leptin was higher during the period around full moon compared with days around half moon (both P < 0.001). The results suggest that physical activity rather than sleep is responsible for the metabolic alterations observed around full moon. However, we have no understanding of potential mechanisms that may mediate a potential true link between childhood behaviour and the lunar cycle or confounders that may explain this, apparently leading to fluctuation in a number of cardiometabolic risk markers conjointly with lunar phases.

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Section: Discussionmentioning

confidence: 99%

Physical activity, sleep duration and metabolic health in children fluctuate with the lunar cycle: science behind the myth

et al. 2015

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“…Of note, dysfunctions in the serotonergic and dopaminergic systems have been also shown to play a role in the pathophysiological mechanisms underlying emotion dysregulation, which, in turn, is strongly linked to mood recurrences, impulsive behaviors, and substance abuse, ultimately leading to an increased risk of suicide in BD patients (53)(54)(55). Similarly, meteorological factors, including low barometric pressure, high temperatures and precipitations, have been associated with decreased sleep quality and abnormal circadian patterns (56,57), which, in turn, may represent a potential marker of SA in BD (58).…”

Section: Discussionmentioning

confidence: 99%

Sensitivity to Climate and Weather Changes in Euthymic Bipolar Subjects: Association With Suicide Attempts

et al. 2020

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Background: Climate and weather are known to affect multiple areas of human life, including mental health. In bipolar disorder (BD), seasonality represents an environmental trigger for mood switches, and climatic variables may contribute to recurrences. Several studies reported seasonal and climatic-related variations in the rate of suicide attempts. Suicide risk is relevant in BD, with approximately 25% of patients attempting suicide. Therefore, this study aimed to assess sensitivity to weather and climatic variations in BD subjects and its relationship with lifetime suicide attempts. Methods: Three hundred fifty-two euthymic BD and 352 healthy control subjects, homogeneous with respect to socio-demographic characteristics, were enrolled. All participants were administered the METEO-Questionnaire (METEO-Q) to evaluate susceptibility to weather and climatic changes. We also investigated the potential relationship between sensitivity to climate and weather and lifetime suicide attempts in BD patients. Results: METEO-Q scores and the number of subjects reaching the cutoff for meteorosensitivity/meteoropathy were significantly higher in BD patients. Within the clinical group, BD subjects with lifetime suicide attempts obtained higher METEO-Q scores, with no differences between BD-I and BD-II. The number of suicide attempts directly correlated with METEO-Q scores. The presence of suicide attempts was associated with the physical and psychological symptoms related to weather variations. Discussion: Our findings support the relevance of sensitivity to weather and climate variations in a large sample of BD subjects and point out the association of this feature with lifetime suicide attempts.

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“…However, our findings were similar to those with a focus on psychiatric patients. It has been proposed that higher temperature could interfere with sleep continuity (50). High environmental temperature may precipitate psychotic exacerbations in schizophrenic patients and thus increase their admission to mental hospitals (1).…”

Section: Discussionmentioning

confidence: 99%

The Relationship between Meteorological Conditions and Homicide, Suicide, Rage, and Psychiatric Hospitalization

Talaeı

Hedjazi

Ardanı

et al. 2014

Journal of Forensic Sciences

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This study focuses on the relationship between the incidence of homicide, rage, suicide, and psychiatric hospitalization as violent behaviors with temperature, humidity, and air pressure as specific meteorological variables in the city of Mashhad, in the northeast of Iran. The data were obtained from Iran Meteorological Organization, official registry of Legal Medicine Organization and the local psychiatric hospital, March 2009 to Feb 2010 daily and were analyzed with SPSS-14 using Pearson correlation coefficient, ANOVA, and post hoc analysis tests. The rates of rage and psychiatric admission had a significant relationship with the daily mean air temperature, minimum relative humidity, maximum relative humidity, minimum daily pressure, and maximum daily air pressure (p < 0.0001). There was no significant correlation between homicide and suicide rates with any meteorological variables (p > 0.05). We concluded that, the possibility of nonfatal violence and psychiatric hospitalization would increase in hot and arid weather with low air pressure.

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Meteorologic factors and subjective sleep continuity: a preliminary evaluation

Cited by 21 publications

References 7 publications

Physical activity, sleep duration and metabolic health in children fluctuate with the lunar cycle: science behind the myth

Physical activity, sleep duration and metabolic health in children fluctuate with the lunar cycle: science behind the myth

Sensitivity to Climate and Weather Changes in Euthymic Bipolar Subjects: Association With Suicide Attempts

The Relationship between Meteorological Conditions and Homicide, Suicide, Rage, and Psychiatric Hospitalization

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