Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
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Adults are resistant to the bacterium that causes Botulism. These bacteria thrive in honey – therefore, honey should never be given to infants since their immune systems are not yet resistant.
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The familiar sounds of your heart are made by the heart's valves as they open and close.
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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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Studies show that systolic blood pressure can be significantly lowered by taking statins. In fact, the higher the patient's baseline blood pressure, the greater the effect of statins on his or her blood pressure.
Phylogenies at different scales
Gravity Works at All Scales
Scales of Atmospheric Motion
The Wong-Baker “Faces” pain rating scale
Scales
Children's behaviour rating scores on measures of aggression and anxiety