Hormones tied to elderly sleep problems
Tuesday, April 12, 2011 - 13:01
in Paleontology & Archaeology
(PhysOrg.com) -- Have you ever wondered why grandma and grandpa head to bed early but are up with the sun every morning? A new study by Lucia Pagani and Steven A. Brown of the University of Zurich recently published in the Proceedings of the National Academy of Sciences may have the answers.