title: Resonance of about-weekly human heart rate rhythm with solar activity change.
abstract: In several human adults, certain solar activity rhythms may influence an about 7-day rhythm in heart rate. When no about-weekly feature was found in the rate of change in sunspot area, a measure of solar activity, the double amplitude of a circadian heart rate rhythm, approximated by the fit of a 7-day cosine curve, was lower, as was heart rate corresponds to about-weekly features in solar activity and/or relates to a sunspot cycle.
authors.affiliation: University of Minnesota, Lyon Laboratories, Minneapolis 55455, USA. corne001@maroon.tc.umn.edu
authors.forename: G
authors.initials: G
authors.lastname: Cornelissen
authors.forename: F
authors.initials: F
authors.lastname: Halberg
authors.forename: H W
authors.initials: HW
authors.lastname: Wendt
authors.forename: C
authors.initials: C
authors.lastname: Bingham
authors.forename: R B
authors.initials: RB
authors.lastname: Sothern
authors.forename: E
authors.initials: E
authors.lastname: Haus
authors.forename: E
authors.initials: E
authors.lastname: Kleitman
authors.forename: N
authors.initials: N
authors.lastname: Kleitman
authors.forename: M A
authors.initials: MA
authors.lastname: Revilla
authors.forename: M
authors.initials: M
authors.lastname: Revilla
authors.forename: T K
authors.initials: TK
authors.lastname: Breus
authors.forename: K
authors.initials: K
authors.lastname: Pimenov
authors.forename: A E
authors.initials: AE
authors.lastname: Grigoriev
authors.forename: M D
authors.initials: MD
authors.lastname: Mitish
authors.forename: G V
authors.initials: GV
authors.lastname: Yatsyk
authors.forename: E V
authors.initials: EV
authors.lastname: Syutkina
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002909:Chronobiology Phenomena; D002940:Circadian Rhythm; D005260:Female; D006339:Heart Rate / Q000502:physiology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D019445:Solar Activity