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Author Question: The second demographic transition theory explains that as societies become more prosperous, couples ... (Read 632 times) |
According to the National Institute of Environmental Health Sciences, lung disease is the third leading killer in the United States, responsible for one in seven deaths. It is the leading cause of death among infants under the age of one year.
In 1844, Charles Goodyear obtained the first patent for a rubber condom.
Human kidneys will clean about 1 million gallons of blood in an average lifetime.
The National Institutes of Health have supported research into acupuncture. This has shown that acupuncture significantly reduced pain associated with osteoarthritis of the knee, when used as a complement to conventional therapies.
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.