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How daylight saving time affects our bodies and minds

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For places that observe daylight saving time, gaining or losing an hour of sleep doesn’t just affect how well-rested people are. The effects of the semi-annual time change are far-reaching, drastically changing stroke and car accident rates, stock prices and more! Sleep scientist Matt Walker shares the surprising consequences of DST, and what they can teach us about improving our sleep health.

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Dig into the history of daylight saving time, and find out why it started in the first place.

Why are we still changing our clocks twice a year? Should this practice continue, or come to an end? Explore the debate with Dustin Buehler, a lecturer at the Willamette University College of Law and general counsel for Oregon’s governor, and Dr. Joseph Takahashi, the chair of the neuroscience department at the University of Texas Southwestern Medical Center and an investigator at the Howard Hughes Medical Institute.

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TED-Ed Best of Web are exceptional, user-created lessons that are carefully selected by volunteer teachers and TED-Ed staff.

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