Did you know?
Asthma cases in Americans are about 75% higher today than they were in 1980.
Did you know?
In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.
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Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%
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An identified risk factor for osteoporosis is the intake of excessive amounts of vitamin A. Dietary intake of approximately double the recommended daily amount of vitamin A, by women, has been shown to reduce bone mineral density and increase the chances for hip fractures compared with women who consumed the recommended daily amount (or less) of vitamin A.
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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.
Normal and sickle-cell hemoglobin. (a) Subtle differences between the conformations of hemoglobin A
Cell cycle
The role of antigen-presenting cell (APC).
Polyamines for cell proliferation because of their roles in stabilizing duplex DNA structure
Typical photovoltaic cell
An antigen-presenting dendritic cell (blue) interacting with a T cell (yellow)