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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.
Vaccines prevent between 2.5 and 4 million deaths every year.
Human kidneys will clean about 1 million gallons of blood in an average lifetime.
Despite claims by manufacturers, the supplement known as Ginkgo biloba was shown in a study of more than 3,000 participants to be ineffective in reducing development of dementia and Alzheimer’s disease in older people.
About 3% of all pregnant women will give birth to twins, which is an increase in rate of nearly 60% since the early 1980s.