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How much sleep you get a night may depend on where in your time zone you live, a new study suggests.
And that, in turn, may help to shape your overall health.
People - Side - Time - See - Evening
People that live on the wrong side of a time zone see more sun later into the evening, go to bed later, get less sleep, and may wind up with more health (and financial) problems.
Researchers at the University of Pittsburgh and the Universita della Svizzera in Italy found that people who live on the edge of a time zone where the sun sets latest are at the greatest risks for breast cancer, obesity, heart attack and diabetes.
Public - Health - Sleep - Experts - Alarm
Public health and sleep experts have been sounding the alarm that the US - and many countries the world over - are in a sleeplessness epidemic.
And being underslept is a known risk factor for health problems.
Changes - Daylight - Savings - Time - Rates
Even small changes like daylight savings time are associated with higher rates of heart attacks.
Similarly, we know that women rates of breast cancer are higher among women who do shift work.
Work - Hours - Rhythms - Clocks - Fluctuations
Irregular work hours disrupt the circadian rhythms that dictate our biological clocks which contribute to the fluctuations of our hormones.
But the new study, published in the Journal of Health Economics, suggests that more minute differences in our days and schedules can shape our sleep schedules and health outcomes.
Sun - Sets - Day - Sets - Time
Moving westward, the sun sets later and later into the day, and even sets later within the time zone.
So within a single time zone, the sun sets a over an hour earlier on the east side than on the west side.
Experts - Presence - Lighting - Person
Sleep experts say that the constant presence of artificial lighting has made it far more difficult for the average person to sleep than it once was.
Even with all of...
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