[time-nuts] Time-zones and World time..
cfharris at erols.com
Thu Oct 30 14:52:24 UTC 2008
Bruce Griffiths wrote:
> Chuck Harris wrote:
>> It was recently reported that the onset of DST coincides with an
>> increase in heart attacks, and the return to standard time coincides
>> with a decrease in heart attacks. Yet another reason to ditch
>> Daylight Savings Time.
>> -Chuck Harris
> Such "effects" are somewhat suspect as there is unlikely to have been
> any comparable control group not subject to DST.
> Also disentangling seasonal effects from possible DST related effects is
> somewhat problematic.
Correlation not being equal to causation always causes some lay folk
problems. Though no one said that the DST shift caused the increase;
it would be interesting to know if when the US changed its DST dates,
the effect followed the change.
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