4 ms·
I believe the cells in your eye's lens are not replaced. New cells are added around the outside but the old ones are never taken away / broken down. This is why
by abainbridge 8y ago
I believe the cells in your eye's lens are not replaced. New cells are added around the outside but the old ones are never taken away / broken down. This is why our lenses become cloudy and more rigid in old age.
- kypro 8y agoSame with the heart too, I believe. It isn't able to create new muscle cells in adulthood.
- KaiserPro 8y agoI think we can simply demonstration that the heart does regenerate. 1) looking at people before and after 1 month of regular exercise. 2) healing of heart after large and invasive surgery.
- abainbridge 8y agoThat is a compelling argument. But, if you Google for "heart cells don't regenerate", you find that it does appear to be a thing experts believe. And you find article like this that attempts to explain why heart cells can't regenerate: https://www.sciencedaily.com/releases/2011/08/110809092102.htm https://www.sciencedaily.com/releases/2011/08/110809092102.h...