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Author Question: The longest wavelengths on the electromagnetic spectrum are: A) infrared. B) visible light. C) ... (Read 49 times) |
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The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.
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Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.
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On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.
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Certain chemicals, after ingestion, can be converted by the body into cyanide. Most of these chemicals have been removed from the market, but some old nail polish remover, solvents, and plastics manufacturing solutions can contain these substances.
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People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.