The Gravitation of the Moon Plays Pivotal Roles in the Occurrence of the Acute Myocardial Infarction

• Published in: Environmental health insights Vol. 2008; no. 1; p. EHI.S900
• Main Authors: Wake, Ryotaro, Yoshikawa, Junichi, Haze, Kazuo, Otani, Shinichiro, Yoshimura, Takayoshi, Toda, Iku, Nishimoto, Masaki, Kawarabayashi, Takahiko, Tanaka, Atsushi, Shimada, Kenei, Iida, Hidetaka, Takeuchi, Kazuhide, Yoshiyama, Minoru
• Format: Journal Article
• Language: English
• Published: London, England SAGE Publishing 2008; SAGE Publications
• Subjects: the gravitation of the moon; biological clock; acute myocardial infarction; lunar cycle
• ISSN: 1178-6302; 1178-6302
• DOI: 10.4137/EHI.S900

Ryotaro Wake1, Junichi Yoshikawa2, Kazuo Haze3, Shinichiro Otani4, Takayoshi Yoshimura5, Iku Toda6, Masaki Nishimoto7, Takahiko Kawarabayashi8, Atsushi Tanaka9, Kenei Shimada2, Hidetaka Iida10, Kazuhide Takeuchi1 and Minoru Yoshiyama1 1Department of Internal Medicine and Cardiology, Graduate School of Medicine, Osaka City University, Osaka, Japan. 2Department of Cardiology, Osaka Hospital of Japan Seafarers Relief Association, Osaka, Japan. 3Department of Cardiology, Osaka City General Hospital, Osaka, Japan. 4Department of Internal medicine, Tane General Hospital, Osaka, Japan. 5Department of Cardiology, Ikuwakai Memorial Hospital, Osaka, Japan. 6Division of Cardiology, Bell Land General Hospital, Sakai, Japan. 7Department of Internal Medicine, Izumi City Hospital, Izumi, Osaka, Japan. 8Department of Internal Medicine, Division of Cardiology, Higashisumisyoshi Morimoto Hospital, Osaka, Japan. 9Department of Cardiovascular Medicine, Wakayama Medical University, Wakayama, Japan. 10Department of Cardiology, Tsukazaki Hospital, Hyougo, Japan. Abstract Acute myocardial infarction (AMI) is a social burden. However, being able to predict AMI could lead to prevention. A previous study showed only the relation between the lunar phase and the occurrence of AMI, but the period it takes for the moon to orbit around the earth and the period of the lunar phase differ. This study investigated the effect of the gravitation of the moon on AMI. Data was comprised of 1369 consecutive patients with first AMI at 5 hospitals from October, 1984 to December, 1997. The universal gravitation of the moon was calculated and compared to the earth onset time of AMI. Universal gravitation of the moon was derived by G*m/d2 (G: universal gravitation constant, m: the mass of the moon, d: the distance between the center of the moon and the center of the earth). The relationship between m/d2 and the cases of AMI was determined. There was an increase in cases, when there is a distance of more than 399864 km from the center of the earth to the center of the moon. The gravitation of more than 399864 km was determined to be weaker gravitation. It is confirmed that the number of AMI patients significantly increases at weaker gravitation periods in this multicenter trial. In conclusion, these results suggest that the gravitation of the moon may have an influence on the occurrence of AMI.