It has been several weeks since we set our clocks one hour ahead for Daylight Savings Time (DST). While many Illinois residents are enjoying that extra hour of daylight each day, many may also have felt tired after the change due to the havoc “springing forward” does to the body’s internal clock. Multiple studies have shown that this fatigue is responsible for an increase in motor vehicle accidents for the first week or two after the change. One major study found that fatal crashes increased by almost 10 percent due to the loss of an hour’s sleep. According to one of that study’s co-authors, moving the clocks ahead causes people to go through a process similar to jet lag. While this fatigue is more severe the first couple of days following the change, some people are affected by it for up to two weeks.
Study: DST Transition More Dangerous Than Previously Thought
The traffic study was conducted by researchers at the University of Colorado, Boulder, and published its findings last year. Researchers used data from the U.S. Fatality Analysis Reporting System (FARS), examining 732,835 car accidents that occurred between 1996 and 2017. The study did not include the accidents from Arizona or Indiana because DST is not consistently observed in those states.
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