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Author Question: A medical study examined data on patients with cardiovascular disease who were currently non-smokers ... (Read 417 times) |
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Thyroid conditions may make getting pregnant impossible.
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Many of the drugs used by neuroscientists are derived from toxic plants and venomous animals (such as snakes, spiders, snails, and puffer fish).
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Blood is approximately twice as thick as water because of the cells and other components found in it.
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Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.
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More than 50% of American adults have oral herpes, which is commonly known as "cold sores" or "fever blisters." The herpes virus can be active on the skin surface without showing any signs or causing any symptoms.