History & Culture. In April 1917, the United States entered World War I on the side of the Allies. Previously angered by the sinking of Lusitania, President Woodrow Wilson led the nation to war after learning of the Zimmermann Telegram and Germany's resumption of unrestricted submarine warfare.
WATER AND HUMANS. * The human body is more than 60 percent water. Blood is 92 percent water, the brain and muscles are 75 percent water, and bones are about 22 percent water. * A human can survive for a month or more without eating food, but only a week or so without drinking water.
There are many causes, yet the main factor is age. Medical research has found the following: According to the U.S. National Institutes of Health, at birth the human body contains 90 percent water, at adulthood it contains 70 percent water, and by age 90 it contains about 50 percent water.