> Morning grogginess is more than just an annoyance. It has major societal consequences: Many auto accidents, job injuries and large-scale disasters are caused

> Morning grogginess is more than just an annoyance. It has major societal consequences: Many auto accidents, job injuries and large-scale disasters are caused by people who cannot shake off sleepiness. The Exxon Valdez oil spill in Alaska, the Three Mile Island nuclear meltdown in Pennsylvania and an even worse nuclear accident in Chernobyl, Ukraine, are well-known examples. Not to make light of these tragedies, but this paragraph got a laugh from me - who thinks of Exxon Valdez, Three Mile Island and Chernobyl as, primarily, examples of _morning sleepiness_?