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Author Question: In "Since no two-story house is a skyscraper and all skyscrapers are elevator buildings, no ... (Read 99 times) |
Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.
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).
Russia has the highest death rate from cardiovascular disease followed by the Ukraine, Romania, Hungary, and Poland.
Thyroid conditions may make getting pregnant impossible.
After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.