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dc.contributor.authorOtsuka, Kuniaki
dc.contributor.authorCornélissen, Germaine
dc.contributor.authorWeydahl, Andi
dc.contributor.authorGubin, Denis
dc.contributor.authorBeaty, Larry A.
dc.contributor.authorMurase, Masatoshi
dc.date.accessioned2023-08-17T08:21:18Z
dc.date.available2023-08-17T08:21:18Z
dc.date.issued2023-01-10
dc.description.abstractThis investigation reviews how geomagnetic activity affects the circadian variation in blood pressure (BP) and heart rate (HR) and their variabilities of clinically healthy individuals. A small study in Alta, Norway (latitude of 70.0° N), serves to illustrate the methodology used to outline rules of procedure in exploring heliogeomagnetic effects on human physiology. Volunteers in the Alta study were monitored for at least 2 days between 18 March 2002 and 9 January 2005. Estimates of the circadian characteristics of BP and HR by cosinor and the Maximum Entropy Method (MEM) indicate an increase in the circadian amplitude of systolic (S) BP on geomagnetic-disturbance days compared to quiet days (p = 0.0236). Geomagnetic stimulation was found to be circadian-phase dependent, with stimulation in the evening inducing a 49.2% increase in the circadian amplitude of SBP (p = 0.0003), not observed in relation to stimulation in the morning. In two participants monitored for 7 days, the circadian amplitude of SBP decreased by 23.4% on an extremely disturbed day but increased by 50.3% on moderately disturbed days (p = 0.0044), suggesting a biphasic (hormetic) reaction of the circadian SBP rhythm to geomagnetics. These results indicate a possible role of geomagnetic fluctuations in modulating the circadian system.en_US
dc.identifier.citationOtsuka K, Cornélissen G, Weydahl A, Gubin, Beaty, Murase. Rules of Heliogeomagnetics Diversely Coordinating Biological Rhythms and Promoting Human Health. Applied Sciences. 2023;13(2)en_US
dc.identifier.cristinIDFRIDAID 2115497
dc.identifier.doi10.3390/app13020951
dc.identifier.issn2076-3417
dc.identifier.urihttps://hdl.handle.net/10037/30009
dc.language.isoengen_US
dc.publisherMDPIen_US
dc.relation.journalApplied Sciences
dc.rights.accessRightsopenAccessen_US
dc.rights.holderCopyright 2023 The Author(s)en_US
dc.rights.urihttps://creativecommons.org/licenses/by/4.0en_US
dc.rightsAttribution 4.0 International (CC BY 4.0)en_US
dc.titleRules of Heliogeomagnetics Diversely Coordinating Biological Rhythms and Promoting Human Healthen_US
dc.type.versionpublishedVersionen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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Attribution 4.0 International (CC BY 4.0)
Except where otherwise noted, this item's license is described as Attribution 4.0 International (CC BY 4.0)