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Did you know?
This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
Did you know?
Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.
Did you know?
The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.
Did you know?
Medication errors are more common among seriously ill patients than with those with minor conditions.
Did you know?
The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.