Resonance of about-weekly human heart rate rhythm with solar activity change.
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.
Cornelissen
G
G
University of Minnesota, Lyon Laboratories, Minneapolis 55455, USA. corne001@maroon.tc.umn.edu
Halberg
F
F
Wendt
H W
HW
Bingham
C
C
Sothern
R B
RB
Haus
E
E
Kleitman
E
E
Kleitman
N
N
Revilla
M A
MA
Revilla
M
M
Breus
T K
TK
Pimenov
K
K
Grigoriev
A E
AE
Mitish
M D
MD
Yatsyk
G V
GV
Syutkina
E V
EV
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