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Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.
Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.
Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.
In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.
In 1864, the first barbiturate (barbituric acid) was synthesized.
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