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Did you know?
There are more nerve cells in one human brain than there are stars in the Milky Way.
Did you know?
The familiar sounds of your heart are made by the heart's valves as they open and close.
Did you know?
More than nineteen million Americans carry the factor V gene that causes blood clots, pulmonary embolism, and heart disease.
Did you know?
Medication errors are more common among seriously ill patients than with those with minor conditions.
Did you know?
There are over 65,000 known species of protozoa. About 10,000 species are parasitic.