The only organ in your body that can literally regrow itself

Added: 2026-05-16

[00:00:00]What if doctors removed three quarters of one of your organs and it just it grew back?

[00:00:04]Your liver is the only organ in the human body capable of full regeneration.

[00:00:09]Remove up to 75% of it and within weeks it rebuilds [music] itself back to its original size using the remaining cells to multiply. This is why liver transplants are possible between living [music] donors. Surgeons take a portion of a healthy liver, transplant it into the patient >> [music] >> and both pieces grow into complete fully functioning livers in two separate bodies. [music] Even wilder, scientists still don't fully understand the exact signal that tells the liver [music] when to stop growing. It knows exactly when it's reached the right size and just stops.

[00:00:42]Your body is running biology [music] we haven't figured out yet. That's Odd Factor.