European settlements in the Caribbean began with Christopher Columbus. Carrying an elaborate feudal commission that made him perpetual governor of all lands discovered and gave him a percentage of all trade conducted, Columbus set sail in September 1492, determined to find a faster, shorter way to China and Japan.
In fact, a 2007 Canadian study found that people who sleep only 5 or 6 hours a night increase their likelihood of being overweight by 69 percent, compared with those who habitually sleep 7 or 8 hours.
What Happens When We Sleep? While many of us think of sleep as a largely forgotten stretch of time when nothing happens, sleep is, neurologically speaking at least, a busy time indeed. Although sleep's importance is inarguable, scientists do not know exactly why it is so important to our survival. What happens when we sleep?