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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.
When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
In 1886, William Bates reported on the discovery of a substance produced by the adrenal gland that turned out to be epinephrine (adrenaline). In 1904, this drug was first artificially synthesized by Friedrich Stolz.
Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.