Human Aggression and the Lunar Synodic Cycle


Biorhythms and the Timing of Death


Diurnal Rhythms of Plasma Cortisol, Beta-Endorphin and Prolactin, and Cerebrospinal Fluid Amine Metabolite Levels Before Suicide

The authors report a case of severe depression with diurnal variation in an adult male who showed low CSF 5HIAA prior to his suicide. In contrast, his catecholamine metabolites were 50% above the mean values of other depressed patients. Hormonal measurements, however, showed low cortisol, prolactin & beta-endorphin levels. (26 refs)

Annual Rhythms in Man (IN: Handbook of Behavioral Neurobiology: Biological Rhythms v.4, edited by J Aschoff)


Seasonal Rhythm of Platelet 3HImipramine Binding in Adolescents who Attempted Suicide

This study was designed to determine the seasonality of serotonin functions among adolescents who attempt suicide. Platelet 3Himipramine binding was assessed over 18 months in 98 adolescent attempters & a comparison group of 23 never-suicidal youths with conduct disorder. 3Himipramne (Bmax) was uncorrelated with age, but showed considerable seasonal variability over time in those who […]

Beta-Adrenoceptors in Brain and Pineal From Depressed Suicide Victims

In this study beta-adrenoceptors were quantitated in several brain regions & pineal glands from suicide victims & sex & age matched controls. Also used wes retrospective psychiatric diagnosis of depression. Materials & methods of the study are discussed as well as results.(40 ref)

Letter to the Editor

The hypothesis that a peaking of suicide deaths in males during the morning hours may be due to diurnal variation of serotonin & decreasing serotonergic-mediated inhibition of dopamine is discussed in this letter. Supporting evidence includes: a link between low serum cholesterol & suicide; importance of dopamine in the control of wakefulness manifested by a […]

Depressive Symptoms and Family History in Seasonal and Nonseasonal Mood Disorders

The goal of this study was to compare the symptoms & family history of seasonal affective disorder (SAD) with those of nonseasonal mood disorders. Patients with SAD reported significantly more hypersomnia, hyperphagia, & weight gain & reported less suicidal ideation & morning worsening of mood than the patients with nonseasonal mood disorders. No differences were […]

Daylight Saving Time in Psychiatric Illness

It has been reported that the change in photoperiod induced by the occurrence of daylight saving time (DST) has an effect on psychiatric presentation. The authors therefore investigated the impact of DST in 3 conditions: parasuicide presentations; psychiatric outpatient contacts & inpatient admissions; & registered suicides. Results show neither the change in photoperiod nor the […]

The Exploration And Exposition of Factors Related to Lunar Influence on Suicides, Suicide Calls And Crisis Calls (Micro BF 1723 C54 1978)

This study examines lunar influence on various demonstrations of emotional crises. Data was gathered from several sources: suicide statistics from the Kalamazoo Country Health Department, County Police, and suicidal calls to a crisis line. Statistical analysis of this data is examined. Findings during different phases of the moon are discussed. Generally, no significant correlations were […]

Sleep and Self-Destruction: A Phenomenological Approach (IN: Essays in Self-Destruction by E S Shneidman)

The author discusses the possible relationships between what he calls cessation & interruption phenomena & describes a study of the phenomenological aspects of the sleep behavior of 7 individuals over a 365-day period. He concludes that sleep itself is rarely self-destructive but can be viewed as the silent therapist of disturbance, balancing & leveling the […]

Sunshine and Suicide: Possible Influences of Climate on Behavior

European patterns of suicide correlate with national annual rates of sunshine. Possible influences of the climate on behavior are examined, and differences between European and American regional patterns of suicide are discussed. Physiological as well as psychological motivations for self-destruction may play a greater part in human behavior than is commonly anticipated. 17 REF. (NBB)

Biorhythms and Suicide

Biorhythms are briefly discussed from external perspectives, such as time & weather, & internal perspectives which include emotional, physical & intellectual cycles.(NBB)

Relation of the Fliess-Swoboda Biorhythm Theory to Suicide Occurrence

Data on occurrence of suicide from a population of 993 Veterans Administration hospital patients were used to test the validity of the Fliess-Swoboda Biorhythm Theory. Using a novel approach to analysis, semicritical day types were included. The findings have heuristic value & may be useful to clinicians treating male Caucasian Veterans Administration inpatients. Suggestions for […]

The Nature of Suicides in Finnish Lappland

In Finnish Lappland, 111 suicide events were analyzed in a one-and a half year period with respect to age, sex of the subject, amount of alcohol present in the blood, biorhythm curves at the day of death, unemployment percentage in the country of residence, time of the year, month, day of the week when suicides […]

Potential Psychological Problems of Army Medical Services Personnel in Combat with Particular Reference to the Territorial Army

In the event of a major European war the Army Medical Services(AMS), of whom the majority would be drawn from the Territorial Army(TA), would be exposed to a unique combination of stresses. Ways of reducing the effects of these are discussed.

Seasonal Variation of Conception and Suicide

Seasonal variation of conception rate & suicide death were studied using UN & WHO data. Findings significant to suicide were: the peak of the suicide curve most often occurs in the spring, although this hypothesis is not supported conclusively; the Japanese data indicates seasonal variation of suicide death moves by age group; i.e., the younger […]

Completed Suicide and Month of Birth

This statistical study refutes the hypothesis that most completed suicides occur in persons born in the month of July.

Attempted Suicide and the Menstrual Cycle: A Negative Conclusion

Data from 107 women included age & marital status, attempt method, period of contemplation of attempt, regularity of menstrual periods, whether taking an oral contraceptive & whether subject believed she was pregnant. Restricted analysis to 76 with regular cycles. Results show no significant relationship bewteen attempted suicide & phase of the menstrual cycle. Pointed out […]

Suicide and Months of Birth

The purpose of this study was to find a relationship between month of birth & suicide. The sample consisted of 1177 suicides in New Hampshire from 1955-69. However, the author found no relationship between month of birth & suicide. No seasonal (that is, months of birth during the winter months) relationship was found either. The […]

Monthly Variation of Suicidal and Accidental Poisoning Deaths

Letter to the Editor

Lunacy and the Moon

Empirical literature is reviewed that addresses the belief in a relationship between phases of the moon & human behaviour. Studies are examined relating lunar phase to psychiatric hospital admissions, suicides, and homicides. It is concluded that lunar phase is not related to human behavior & that the few positive findings are examples of a Type […]

Biological Aspects of Suicide

Circadian disorganization was studied in 15 normal males. Following a 5 day baseline period, a 12 hour photoperiod shift took place followed by a 10 day recovery period. Analysis of data on a subject who suicided 2 weeks after the study indicated that he differed, rhythmically from the other subjects, suggesting that circadian asynchrony & […]