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Most women experience menopause in their 50s. However, in 1994, an Italian woman gave birth to a baby boy when she was 61 years old.
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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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Human kidneys will clean about 1 million gallons of blood in an average lifetime.
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Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.
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Normal urine is sterile. It contains fluids, salts, and waste products. It is free of bacteria, viruses, and fungi.