|
|
About one in five American adults and teenagers have had a genital herpes infection—and most of them don't know it. People with genital herpes have at least twice the risk of becoming infected with HIV if exposed to it than those people who do not have genital herpes.
There are more sensory neurons in the tongue than in any other part of the body.
As many as 20% of Americans have been infected by the fungus known as Histoplasmosis. While most people are asymptomatic or only have slight symptoms, infection can progress to a rapid and potentially fatal superinfection.
The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
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.
![Major features of Homo erectus include increased brain size, an angular vault, and cranial superstru](https://biology-forums.com/gallery/47/medium_275510_22_02_15_5_56_52_207622175.jpeg)
![Should we restore YellowstoneNationalPark, as our flagship National Park, to include the natural ...](https://biology-forums.com/gallery/47/medium_627332_20_11_16_5_14_25.jpeg)