According to a contributor, the back part of your eye has a complex protein called crystallin. It helps your eye process light, but it’s not found in any other body part. Thus, your immune system doesn’t recognize it.
Have you ever felt your stomach or any of your organs shifting? Several women say they could feel their organs moving in the space the baby once occupied. The organs move back into their original position as the uterus shrinks.
Collagen does all the patchwork in our body. A responder discloses that if you have vitamin C deficiency, your collagen levels may drop to the point where old scar tissue breaks down. This will cause your wounds to reopen.
Many answers marvel at the realization that if two-thirds of your liver is removed, it will grow back. However, the bile duct, veins, and arteries can never grow back, so you can only donate once.