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Did you know?

On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.

Did you know?

Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.

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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.

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Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.

Did you know?

The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").

Worldwide Variations in Population and Income Levels Worldwide Variations in Population and Income Levels
The Abecedarian study was designed to help very low-income African American children prepare for ... The Abecedarian study was designed to help very low-income African American children prepare for ...
Income Distribution in the United States, 2009 Income Distribution in the United States, 2009
Capital’s Share of Income in a Cross-Section of Countries Capital’s Share of Income in a Cross-Section of Countries
Saving Rate by Decile of Income per Capita Saving Rate by Decile of Income per Capita
Discrete random variables- Probability Distribution Function Discrete random variables- Probability Distribution Function
Video: Introduction to Heart Attacks

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