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Blood is approximately twice as thick as water because of the cells and other components found in it.
The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
Many people have small pouches in their colons that bulge outward through weak spots. Each pouch is called a diverticulum. About 10% of Americans older than age 40 years have diverticulosis, which, when the pouches become infected or inflamed, is called diverticulitis. The main cause of diverticular disease is a low-fiber diet.
As many as 20% of Americans have been infected by the fungus known as Histoplasmosis. While most people are asymptomatic or only have slight symptoms, infection can progress to a rapid and potentially fatal superinfection.
The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.