The human body produces and destroys 15 million blood cells every second.
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The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.
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On average, the stomach produces 2 L of hydrochloric acid per day.
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Critical care patients are twice as likely to receive the wrong medication. Of these errors, 20% are life-threatening, and 42% require additional life-sustaining treatments.
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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.
Tropical rain forest in Fiji
Tropical deciduous forest in Bandhavgarh National Park, India