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BlueSkyKing · M
@yestestvennaya It’s probably the average age of the cells in the body is 7 to 10 years old.
https://science.howstuffworks.com/life/cellular-microscopic/does-body-really-replace-seven-years.htm
Another point of view
"Think of an experience from your childhood. Something you remember clearly, something you can see, feel, maybe even smell, as if you were really there. After all, you really were there at the time, weren’t you? How else would you remember it?
But here is the bombshell: you weren’t there.
Not a single atom that is in your body today was there when that event took place … Matter flows from place to place and momentarily comes together to be you.
Whatever you are, therefore, you are not the stuff of which you are made.
If that doesn’t make the hair stand up on the back of your neck, read it again until it does, because it is important."
Richard Dawkins uses this quote in his TED Talk
https://science.howstuffworks.com/life/cellular-microscopic/does-body-really-replace-seven-years.htm
Another point of view
"Think of an experience from your childhood. Something you remember clearly, something you can see, feel, maybe even smell, as if you were really there. After all, you really were there at the time, weren’t you? How else would you remember it?
But here is the bombshell: you weren’t there.
Not a single atom that is in your body today was there when that event took place … Matter flows from place to place and momentarily comes together to be you.
Whatever you are, therefore, you are not the stuff of which you are made.
If that doesn’t make the hair stand up on the back of your neck, read it again until it does, because it is important."
Richard Dawkins uses this quote in his TED Talk
yestestvennaya · 22-25, F
@BlueSkyKing It is not. Skin cells are replaced in one to three months. White blood cells? Neutrophils last from hours to days. Monocytes about a day. Lymphocytes years, decades. Red blood cells are replaced in months. Liver cells last for year to a year and half. Lungs? Ciliated epithelial cells last from weeks to months. Alveolar type I cells last decades. Alveolar type II can last years. Kidneys? The tubule epithelial cells last from days to months. Podocytes a lifetime. Bone? Months, decades. Fibroblasts? Years, decades. Adipocytes? Up to ten years. Brain? Some neurons in the hippocampus regenerate. Neurons in the cerebral cortex do not. I told you the brain and heart are stubborn. Cardiomyocytes can last lifetime. Very negligible regeneration of some every year.
I don't know what you talk about matter or Richard Dawkins for. You can see that matter lasts for years, for a lifetime. What on earth do you think you are? Matter. You are one large matter and have been since the time you were an embryo. That pie, the pie that is you, is not getting put in the oven and baked again. You have been baked. You are whole. The pie may crumble in time, but we don't call that renewal, my friend.
I don't know what you talk about matter or Richard Dawkins for. You can see that matter lasts for years, for a lifetime. What on earth do you think you are? Matter. You are one large matter and have been since the time you were an embryo. That pie, the pie that is you, is not getting put in the oven and baked again. You have been baked. You are whole. The pie may crumble in time, but we don't call that renewal, my friend.