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Did you know?

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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Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.

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The average adult has about 21 square feet of skin.

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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.

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Medication errors are three times higher among children and infants than with adults.

A page from Kelileh o Demneh dated 1429, from Herat, a Persian translation of the ancient Indian Pan A page from Kelileh o Demneh dated 1429, from Herat, a Persian translation of the ancient Indian Pan
General representation of the autonomic nervous system. General representation of the autonomic nervous system.
Schematic representation of protein structure. Schematic representation of protein structure.
A Schematic Representation of the Flawed Predator Experiment A Schematic Representation of the Flawed Predator Experiment
Schematic representation of MHC class I molecule, consisting of 3 α domains and 1 β2-microglobulin ... Schematic representation of MHC class I molecule, consisting of 3 α domains and 1 β2-microglobulin ...
A simplified representation of the folding pathway for a protein A simplified representation of the folding pathway for a protein
Video: Neural Reflex Arc Animation

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