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More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.
The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.
There are more nerve cells in one human brain than there are stars in the Milky Way.
Asthma cases in Americans are about 75% higher today than they were in 1980.
If all the neurons in the human body were lined up, they would stretch more than 600 miles.
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