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Blood is approximately twice as thick as water because of the cells and other components found in it.
If all the neurons in the human body were lined up, they would stretch more than 600 miles.
Approximately 500,000 babies are born each year in the United States to teenage mothers.
The Centers for Disease Control and Prevention has released reports detailing the deaths of infants (younger than 1 year of age) who died after being given cold and cough medications. This underscores the importance of educating parents that children younger than 2 years of age should never be given over-the-counter cold and cough medications without consulting their physicians.
In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.