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According to the National Institute of Environmental Health Sciences, lung disease is the third leading killer in the United States, responsible for one in seven deaths. It is the leading cause of death among infants under the age of one year.
The Centers for Disease Control and Prevention (CDC) was originally known as the Communicable Disease Center, which was formed to fight malaria. It was originally headquartered in Atlanta, Georgia, since the Southern states faced the worst threat from malaria.
Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.
On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.
The horizontal fraction bar was introduced by the Arabs.