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Did you know?

There are more nerve cells in one human brain than there are stars in the Milky Way.

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In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.

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Human kidneys will clean about 1 million gallons of blood in an average lifetime.

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Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.

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To prove that stomach ulcers were caused by bacteria and not by stress, a researcher consumed an entire laboratory beaker full of bacterial culture. After this, he did indeed develop stomach ulcers, and won the Nobel Prize for his discovery.

This painting depicts New Orleans in 1803, when the city was acquired—along with much of the modern This painting depicts New Orleans in 1803, when the city was acquired—along with much of the modern
The Kingsley plantation, on Fort George Island in Jacksonville, Florida. Zephaniah Kingsley, the own The Kingsley plantation, on Fort George Island in Jacksonville, Florida. Zephaniah Kingsley, the own
Booker T. Washington in his office at Tuskegee Institute, 1900. Washington chose a policy of accommo Booker T. Washington in his office at Tuskegee Institute, 1900. Washington chose a policy of accommo
Strategic Management and Competitive Advantage: Concepts and Cases, 6th Edition Strategic Management and Competitive Advantage: Concepts and Cases, 6th Edition
United States Health Care System: Combining Business, Health, and Delivery United States Health Care System: Combining Business, Health, and Delivery
Percentage of youth age 15 to 19 years with at-risk levels of body composition & fitness Percentage of youth age 15 to 19 years with at-risk levels of body composition & fitness
Video: Five phases of cardiac cycle & Atrial contraction

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