Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.
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More than 30% of American adults, and about 12% of children utilize health care approaches that were developed outside of conventional medicine.
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The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."
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The oldest recorded age was 122. Madame Jeanne Calment was born in France in 1875 and died in 1997. She was a vegetarian and loved olive oil, port wine, and chocolate.
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On average, the stomach produces 2 L of hydrochloric acid per day.
Like most world-changing inventions, the printing press of fifteenth-century Europe took advantage o
Selected Natural Products
Selected Complications of Total Parenteral Nutrition
Principles of amplification of selected fragments of DNA by polymerase chain reaction cycling.
Estimated New Cases of Selected Cancers in the USA, 2012