|
|
Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.
On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.
There are approximately 3 million unintended pregnancies in the United States each year.
In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.
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).