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The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
Normal urine is sterile. It contains fluids, salts, and waste products. It is free of bacteria, viruses, and fungi.
Women are 50% to 75% more likely than men to experience an adverse drug reaction.
The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.
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