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There are approximately 3 million unintended pregnancies in the United States each year.
The eye muscles are the most active muscles in the whole body. The external muscles that move the eyes are the strongest muscles in the human body for the job they have to do. They are 100 times more powerful than they need to be.
As many as 28% of hospitalized patients requiring mechanical ventilators to help them breathe (for more than 48 hours) will develop ventilator-associated pneumonia. Current therapy involves intravenous antibiotics, but new antibiotics that can be inhaled (and more directly treat the infection) are being developed.
In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.
Blood is approximately twice as thick as water because of the cells and other components found in it.