The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.
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According to the CDC, approximately 31.7% of the U.S. population has high low-density lipoprotein (LDL) or "bad cholesterol" levels.
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The longest a person has survived after a heart transplant is 24 years.
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Women are two-thirds more likely than men to develop irritable bowel syndrome. This may be attributable to hormonal changes related to their menstrual cycles.
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Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.
Gene Expression
Meander Loop on the Colorado River
Gene Expression
Bacterial small noncoding RNAs regulate gene expression
Whole genome expression
Comparison of bacterial and eukaryotic gene expression