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In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.
The training of an anesthesiologist typically requires four years of college, 4 years of medical school, 1 year of internship, and 3 years of residency.
The human body produces and destroys 15 million blood cells every second.
There used to be a metric calendar, as well as metric clocks. The metric calendar, or "French Republican Calendar" divided the year into 12 months, but each month was divided into three 10-day weeks. Each day had 10 decimal hours. Each hour had 100 decimal minutes. Due to lack of popularity, the metric clocks and calendars were ended in 1795, three years after they had been first marketed.
Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.

