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Did you know?
The familiar sounds of your heart are made by the heart's valves as they open and close.
Did you know?
In the United States, congenital cytomegalovirus causes one child to become disabled almost every hour. CMV is the leading preventable viral cause of development disability in newborns. These disabilities include hearing or vision loss, and cerebral palsy.
Did you know?
The human body produces and destroys 15 million blood cells every second.
Did you know?
Eating food that has been cooked with poppy seeds may cause you to fail a drug screening test, because the seeds contain enough opiate alkaloids to register as a positive.
Did you know?
Blood is approximately twice as thick as water because of the cells and other components found in it.