Vaccines prevent between 2.5 and 4 million deaths every year.
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Cyanide works by making the human body unable to use oxygen.
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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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The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
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Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.
The visual field as seen by a person with (a) glaucoma, (b) macular degeneration, and (c) cataracts.
An example of color blindness test. A person with red-green color blindness would not be able to dis
How Much Food Does the World Produce Per Person?
Brushing off to finish-front. Move to the front and place the person’s hands on his or her knees. ...
Food security per person
Young children\'s understanding of an actor\'s intentions