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Getty Images/Tanja Ivanova
- Daylight-saving time is a killer, scientists say.
- A third of the world and most US states observe daylight-saving time.
- DST is linked to increases in heart attacks and car accidents.
Summer is coming to an end, meaning we're in our final weeks of daylight-saving time for the year.
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Courtesy Melissa Noble
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Tyler Le/BI
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