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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.
The longest a person has survived after a heart transplant is 24 years.
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.
Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.
The liver is the only organ that has the ability to regenerate itself after certain types of damage. As much as 25% of the liver can be removed, and it will still regenerate back to its original shape and size. However, the liver cannot regenerate after severe damage caused by alcohol.