Charles Czeisler

Jan. 16, 2015

Tablets and Smartphones Might Be Sapping Your Sleep

Researchers say using tablets and smartphones before bedtime can shift your circadian rhythms.

charles czeisler, sleep, circadian rhythms, awake, mobile phones, smartphones, blue screen, tablets

Jan. 11, 2013

Simulating the Red Planet, On the Pale Blue Dot

What's it like to live -- and cook -- on Mars? To find out, researchers are simulating Mars missions in Russia and on the slopes of a Hawaiian volcano.

mars mission, space travel, spaceflight, simulation, voyage, mission to mars, sleep, daylight, cycles

Mar. 11, 2011

TV And Smartphones May Hamper A Good Night's Sleep

Nearly half of American adults say they rarely get a good night's sleep, according to a new poll.

sleep, tired, technology, rest

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Michael Pollan Talks Plants and Food

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Mystery Box

Every Spring, This Bird Struts its Stuff

\tThe Greater sage-grouse makes its living in sagebrush habitats across the western U.S. and Canada. Every year from late February to May, male sage-grouse perform a striking dance routine each morning at dawn. Jason Robinson, upland game coordinator for the Utah Division of Wildlife Resources, breaks down the dance and describes challenges the birds face in Utah.

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