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If all the neurons in the human body were lined up, they would stretch more than 600 miles.
No drugs are available to relieve parathyroid disease. Parathyroid disease is caused by a parathyroid tumor, and it needs to be removed by surgery.
The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
The longest a person has survived after a heart transplant is 24 years.
The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.
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