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The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.

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Anesthesia awareness is a potentially disturbing adverse effect wherein patients who have been paralyzed with muscle relaxants may awaken. They may be aware of their surroundings but unable to communicate or move. Neurologic monitoring equipment that helps to more closely check the patient's anesthesia stages is now available to avoid the occurrence of anesthesia awareness.

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Signs and symptoms of a drug overdose include losing consciousness, fever or sweating, breathing problems, abnormal pulse, and changes in skin color.

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Eating food that has been cooked with poppy seeds may cause you to fail a drug screening test, because the seeds contain enough opiate alkaloids to register as a positive.

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In 1844, Charles Goodyear obtained the first patent for a rubber condom.

Darters such as this male greenside darter form a diverse and distinctive subfamily of fishes within Darters such as this male greenside darter form a diverse and distinctive subfamily of fishes within
Seasonal changes in biomass and growth form of benthic algae in the Eel River, California: (a) in ea Seasonal changes in biomass and growth form of benthic algae in the Eel River, California: (a) in ea
The skimmers or perchers and their relatives form the Libellulidae, the largest dragonfly family in The skimmers or perchers and their relatives form the Libellulidae, the largest dragonfly family in
Hail is precipitation in the form of hard, rounded pellets of ice. Hail is precipitation in the form of hard, rounded pellets of ice.
How to determine an equation in vertex form of a parabola How to determine an equation in vertex form of a parabola
6. Nitric oxide reacts with oxygen to form nitrogen dioxide: 2 NO(g) + O2(g) ⇌ 2 NO2(g) What ... 6. Nitric oxide reacts with oxygen to form nitrogen dioxide: 2 NO(g) + O2(g) ⇌ 2 NO2(g) What ...
Video: Griffith's experiments

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