After sleeping for only four hours, people tend to eat more calories on the following day than when they get a good night's sleep, the study found.

CNN: Sleep deprivation spurs hunger

"They still have a week or so because the Games start, so hopefully people will be working day and night to get this sorted out and make it a good event for all the athletes, " she said.

BBC: Susan Egelstaff

Mocking those who insist on going into the rain without an umbrella or who claim that night is day, cold is hot, snow makes for a good time at the beach, money printing generates wealth, and nations can tax and spend their way to prosperity may not solve any problems.

FORBES: Chronicling The Decline And Fall Of Entitlement Democracy

He spent the first day of his retirement reading and praying, following a good night's sleep, Lombardi said Friday.

CNN: Vatican: Cardinals still to arrive in Rome

"Exercise is known to help with sleep if you don't do it just before bedtime, " possibly because it promotes overall good health and helps enhance the body's circadian rhythm, which promotes activity during the day and resting at night, says Rapoport.

CNN: Exercise plus sleep may lower cancer risk in women