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Did you know?

About 3.2 billion people, nearly half the world population, are at risk for malaria. In 2015, there are about 214 million malaria cases and an estimated 438,000 malaria deaths.

Did you know?

The eye muscles are the most active muscles in the whole body. The external muscles that move the eyes are the strongest muscles in the human body for the job they have to do. They are 100 times more powerful than they need to be.

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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.

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Approximately 15–25% of recognized pregnancies end in miscarriage. However, many miscarriages often occur before a woman even knows she is pregnant.

Did you know?

People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.

Aerial view of a blue whale showing both pectoral fins Aerial view of a blue whale showing both pectoral fins
Blue light is scattered more than other wavelengths by the gases in the atmosphere, giving the Earth Blue light is scattered more than other wavelengths by the gases in the atmosphere, giving the Earth
blue eyed grass blue eyed grass
Complete the table by dragging the white labels to the gray targets, the blue la Complete the table by dragging the white labels to the gray targets, the blue la
Return of oxygenated blood to the heart and entry into the aorta (red = oxygenated blood, blue = ... Return of oxygenated blood to the heart and entry into the aorta (red = oxygenated blood, blue = ...
Dark Blue Eye Color Dark Blue Eye Color
Video: Exercise and cardiac output

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