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Did you know?

Liver spots have nothing whatsoever to do with the liver. They are a type of freckles commonly seen in older adults who have been out in the sun without sufficient sunscreen.

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The shortest mature adult human of whom there is independent evidence was Gul Mohammed in India. In 1990, he was measured in New Delhi and stood 22.5 inches tall.

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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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Stroke kills people from all ethnic backgrounds, but the people at highest risk for fatal strokes are: black men, black women, Asian men, white men, and white women.

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Astigmatism is the most common vision problem. It may accompany nearsightedness or farsightedness. It is usually caused by an irregularly shaped cornea, but sometimes it is the result of an irregularly shaped lens. Either type can be corrected by eyeglasses, contact lenses, or refractive surgery.

Refined and raw sugar crystals Refined and raw sugar crystals
Brain freeze Brain freeze
Adult Blood Pressure Guidelines Adult Blood Pressure Guidelines
Preload is related to the amount of blood and stretching of the ventricular myocardial fibers Preload is related to the amount of blood and stretching of the ventricular myocardial fibers
Neural network in brain Neural network in brain
Lateral view of right side of brain Lateral view of right side of brain
Video: Introduction to Eating Disorders

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