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The average office desk has 400 times more bacteria on it than a toilet.
Over time, chronic hepatitis B virus and hepatitis C virus infections can progress to advanced liver disease, liver failure, and hepatocellular carcinoma. Unlike other forms, more than 80% of hepatitis C infections become chronic and lead to liver disease. When combined with hepatitis B, hepatitis C now accounts for 75% percent of all cases of liver disease around the world. Liver failure caused by hepatitis C is now leading cause of liver transplants in the United States.
During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).
Oliver Wendell Holmes is credited with introducing the words "anesthesia" and "anesthetic" into the English language in 1846.
There are more nerve cells in one human brain than there are stars in the Milky Way.
![Empathy draws a more positive response from the patient because it is based on the willingness of th](https://biology-forums.com/gallery/47/medium_380792_21_05_16_2_07_16_23554936.jpeg)
![When young infants hold objects for a long period of time they eventually become habituated to them.](https://biology-forums.com/gallery/47/medium_637842_18_01_17_6_02_54_245021528.png)