The Sleepiest States List

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A new study has ranked U.S. states by residents' sleep problems and daytime fatigue. Among the sleepiest states, likely a reflection of the lack of quality sleep, were West Virginia, Oklahoma, Mississippi and Alabama.

The researchers, including Michael Grandner of the University of Pennsylvania, analyzed data from 157,319 participants who had answered two questions about how many days over the prior two weeks (from zero to 14) they had trouble falling asleep, staying asleep or sleeping too much. They also reported the number of days they felt tired or had little energy during that time. [5 Things You Must Know About Sleep]

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Jeanna Bryner
Managing editor, Scientific American

Jeanna Bryner is managing editor of Scientific American. Previously she was editor in chief of Live Science and, prior to that, an editor at Scholastic's Science World magazine. Bryner has an English degree from Salisbury University, a master's degree in biogeochemistry and environmental sciences from the University of Maryland and a graduate science journalism degree from New York University. She has worked as a biologist in Florida, where she monitored wetlands and did field surveys for endangered species, including the gorgeous Florida Scrub Jay. She also received an ocean sciences journalism fellowship from the Woods Hole Oceanographic Institution. She is a firm believer that science is for everyone and that just about everything can be viewed through the lens of science.