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Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.
The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.
Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.
This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
There are more nerve cells in one human brain than there are stars in the Milky Way.
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