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Did you know?
It is difficult to obtain enough calcium without consuming milk or other dairy foods.
Did you know?
During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).
Did you know?
There are approximately 3 million unintended pregnancies in the United States each year.
Did you know?
Everyone has one nostril that is larger than the other.
Did you know?
Every 10 seconds, a person in the United States goes to the emergency room complaining of head pain. About 1.2 million visits are for acute migraine attacks.