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Pink eye is a term that refers to conjunctivitis, which is inflammation of the thin, clear membrane (conjunctiva) over the white part of the eye (sclera). It may be triggered by a virus, bacteria, or foreign body in the eye. Antibiotic eye drops alleviate bacterial conjunctivitis, and antihistamine allergy pills or eye drops help control allergic conjunctivitis symptoms.

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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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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.

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According to the Migraine Research Foundation, migraines are the third most prevalent illness in the world. Women are most affected (18%), followed by children of both sexes (10%), and men (6%).

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Atropine was named after the Greek goddess Atropos, the oldest and ugliest of the three sisters known as the Fates, who controlled the destiny of men.

A jawbone found in the mainland Jenolan Caves A jawbone found in the mainland Jenolan Caves
The Atmosphere’s Oxygen Came from Photosynthetic Organisms The Atmosphere’s Oxygen Came from Photosynthetic Organisms
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The waveform of a good oxygen sensor as displayed on a digital storage oscilloscope (DSO). Note ... The waveform of a good oxygen sensor as displayed on a digital storage oscilloscope (DSO). Note ...
Combustion analysis of 0.150 g of an unknown compound containing carbon, hydrogen, and oxygen ... Combustion analysis of 0.150 g of an unknown compound containing carbon, hydrogen, and oxygen ...
Partial pressures (in mm Hg) for oxygen (red boxes) and carbon dioxide (blue boxes) in the atmospher Partial pressures (in mm Hg) for oxygen (red boxes) and carbon dioxide (blue boxes) in the atmospher
Video: Kinetic parameters & Kinetic experiment

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