[time-nuts] Time-zones and World time..

[Robert Darlington]

Never mind it happens right before the holidays.  I'm stressed either way.

On Thu, Oct 30, 2008 at 9:36 AM, Chuck Harris <cfharris at erols.com> wrote:

> Brooke Clarke wrote:
> > Hi Chuck:
> >
> > Not all of the U.S. uses DST, so there's a control group.
>
> That's true, but it cannot be said that the areas that don't
> use DST are equivalent to those that do in all respects that
> might cause heart problems.
>
> It is thought the change in sleep/wake patterns is what causes
> the stress to the heart, so I would be most interested in what
> happened to identical populations when the DST date changed.
>
> Unfortunately, he study period was from 1987 through 2006, so
> I believe it missed the shift in DST dates.
>
> The Swedish researchers that did the study said the number of
> heart attacks drops 5% for the 7 days after the US changes from
> DST to standard time, and spikes on the Monday we go back to DST.
>
> I expect that the daily risk will be found to shift with the
> change in the DST date.
>
> -Chuck Harris
>
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