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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?
Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.
Did you know?
This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
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Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.
Did you know?
The people with the highest levels of LDL are Mexican American males and non-Hispanic black females.