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Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.

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Today, nearly 8 out of 10 pregnant women living with HIV (about 1.1 million), receive antiretrovirals.

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For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.

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The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.

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Cyanide works by making the human body unable to use oxygen.

Furchgott's discovery that endothelial cells produce a vasodilating substance. Furchgott's discovery that endothelial cells produce a vasodilating substance.
Four different spindle attachments produce four second-division segregation patterns Four different spindle attachments produce four second-division segregation patterns
Hydration is essential to body function, especially engaged in strenuous activities Hydration is essential to body function, especially engaged in strenuous activities
For each function f(x) = 6x^2 - 4, estimate the instantaneous rate of change for the given ... For each function f(x) = 6x^2 - 4, estimate the instantaneous rate of change for the given ...
Exponential and log function Exponential and log function
Posterior pituitary function Posterior pituitary function
Video: Mitochondrial Structure & ETC Protein Complexes (Protein Complexes and Electron Transport)

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