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On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.
There are 60,000 miles of blood vessels in every adult human.
The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
All patients with hyperparathyroidism will develop osteoporosis. The parathyroid glands maintain blood calcium within the normal range. All patients with this disease will continue to lose calcium from their bones every day, and there is no way to prevent the development of osteoporosis as a result.
When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).