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Though the United States has largely rejected the metric system, it is used for currency, as in 100 pennies = 1 dollar. Previously, the British currency system was used, with measurements such as 12 pence to the shilling, and 20 shillings to the pound.
A recent study has found that following a diet rich in berries may slow down the aging process of the brain. This diet apparently helps to keep dopamine levels much higher than are seen in normal individuals who do not eat berries as a regular part of their diet as they enter their later years.
In 1844, Charles Goodyear obtained the first patent for a rubber condom.
There are 60,000 miles of blood vessels in every adult human.
More than 34,000 trademarked medication names and more than 10,000 generic medication names are in use in the United States.