Saturday, May 01, 2010

Naissances et pleine lune : c'est un mythe

Lors d'une conversation entre amis, le fameux mythe des naissances plus nombreuses lors des pleines lunes est revenu sur la table. Mais est-ce bien un mythe ou est-ce actuellement vrai ? Après quelques lectures sur Internet, je me suis retrouvé sur Wikipedia qui offre une bonne quantité de références scientifiques et les conclusions de l'analyse de l'ensemble des études scientifiques réalisés à ce sujet sont très claires : il n'y aucune corrélation entre le nombre de naissances et le cycle de la lune.

Tiré de l'article wikipedia:

Psychologist Ivan Kelly of the University of Saskatchewan (with James Rotton and Roger Culver) did a meta-analysis of thirty-seven studies that examined relationships between the moon's four phases and human behavior. The meta-analysis revealed no correlation. They also checked twenty-three studies that had claimed to show correlation, and nearly half of these contained at least one statistical error.[4] Kelly, Ronnie Martins, and Donald Saklofske evaluated twenty-one studies of births related to the phase of the moon and found no correlation. The scientific data "supports the view that there is no causal relationship between lunar phenomena and human behavior".[4] (Diefendorf 2007:113)
[...]
In 1959 Walter and Abraham Menaker reported that a study of over 510,000 births in New York City showed a 1 percent increase in births in the two weeks after full moon. In 1967 Walter Menaker studied another 500,000 births in New York City, and this time he found a 1 percent increase in births in the two-week period centered on the full moon. In 1973 M. Osley, D. Summerville, and L. B. Borst studied another 500,000 births in New York City, and they reported a 1 percent increase in birthsbefore the full moon. In 1957 Rippmann analyzed 9,551 births in Danville, PA and found no correlation between the birth rate and the phase of the moon [5]
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