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Although puberty usually occurs in the early teenage years, the world's youngest parents were two Chinese children who had their first baby when they were 8 and 9 years of age.
Vaccines prevent between 2.5 and 4 million deaths every year.
After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.
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.
Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.
![Examples of USP labels Source: Courtesy of Novartis Pharmaceuticals Corporation and Mallinckrodt Pha](https://biology-forums.com/gallery/47/medium_46687_08_12_14_4_52_49_19512932.jpeg)
![This 1900 photograph of steel factories at night in Duquesne, near Pittsburgh, was tinted by hand. S](https://biology-forums.com/gallery/47/medium_27_24_08_15_1_27_03_22383854.jpeg)