Cerebral infarction versus solar and geomagnetic activity: a cross-regression study

The monthly registered Wolf numbers (i.e the numbers of sunspots), solar flares index and Ap index of the geomagnetic activity values display negative regression dependence („negatively correlate“) upon the monthly observed numbers of new cases of cerebral infarction.This phenomenon is present with delays from -6 months (infarction before the cosmogeophysical measurement) up to + 17 months (infarction after the cosmogeophysical measurement),with the most pronounced relationship for delay of +5 months.