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Complications of influenza include: bacterial pneumonia, ear and sinus infections, dehydration, and worsening of chronic conditions such as asthma, congestive heart failure, or diabetes.
Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.
An identified risk factor for osteoporosis is the intake of excessive amounts of vitamin A. Dietary intake of approximately double the recommended daily amount of vitamin A, by women, has been shown to reduce bone mineral density and increase the chances for hip fractures compared with women who consumed the recommended daily amount (or less) of vitamin A.
The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.
The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.