Many people worry about aging, but few realize that no matter how long you live, some of your body's organs are actually only a few weeks or even days old, because they are constantly self-renewing.
**Liver lifespan: 5 months**
It is well known that due to its abundant blood supply, the liver has an amazing ability to self-heal and regenerate. This ensures that the liver can continue its work of removing toxins from the body. If you're wondering why even heavy drinkers sometimes experience improved liver function, it's because liver cells have a lifespan of about 150 days. It’s reported that if a patient undergoes surgery where 70% of their liver is removed, it takes just two months for approximately 90% of the liver to regenerate.
**Heart lifespan: 20 years**
Previously, it was believed that the heart could not...