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Welcome to ANI In The Air, Wondrous Wednesday, where I talk about something wondrous.
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So I thought I'd briefly mention this thing that I've heard for decades, that basically
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our bodies, human bodies, regenerate every 10 years.
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So after 10 years, there's nothing left.
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Now this is not entirely true, apparently.
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What is true is various cells do regenerate themselves entirely.
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So red blood cells live about four months, apparently.
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And so after four months, they are totally rejuvenated.
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No red blood cells from the past.
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The skin is, you know, our outer layer of protection, and that gets rejuvenated every
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two to four weeks, apparently.
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So if you looked at yourself two months ago, you were looking at something entirely different.
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All new skin being seen.
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The hair, this probably needs a fact check, but supposedly has a lifespan of about six
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years for women and three years for men.
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I don't understand why there'd be a difference, but okay.
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The liver is more on the order of a year, somewhere between 150 to 500 days.
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It's the, you know, main detoxifier in a body.
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And stomach and intestines, the outer lining is maybe only up to five days, so they're
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dealing with lots of acid and stuff.
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Harsh life.
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Our bones apparently takes a full 10 years to regenerate, although that slows down as
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we age.
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So that's probably where the 10 years figure.
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So that's a lot of major systems that do regenerate, and you know, it's, you know, that's a big
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bulk of who we are, like literally.
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However, the way we think of ourselves in terms of our mental states, I think therefore
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I am, that is governed of course by our brain, at least in part.
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And the neurons in the brain, they generally don't regenerate.
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Apparently there are certain areas that do create new nerves, such as the place for dealing
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with sensory smell information, seems oddly specific.
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But for the most part, the configurations of our brain, while changing, is not changing
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because of new cells, but just simply, you know, the neurons making connections or getting
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rid of connections or whatever it is they do.
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So yeah, that's my thought.
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I wonder if spotty, I mean, you know, a lot of times people bring this up to say something
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along the lines of, well, you're not the same person you were 10 years ago or 20 years ago
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or something, it's a whole new individual.
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And I think with the, you know, it's obviously a philosophical debate as to whether one thinks
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that way or not, but I would say most people, if with the brains being kind of fixed, would
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consider that kind of the same person, although obviously we're not the same, we change a
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lot, but you know, the basic structure is still the same there.
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But it is kind of like weird to think about just how much change is going on in everybody
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you see, and yet you never see the change, right?
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You don't see anyone really shedding skin other than, you know, some medical conditions.
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And we all know that, you know, stuff grows and flakes off and whatever, and cells die
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and get discarded, new ones grow, but I find it a little bit wondrous to just think about
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that all going on and our mental awareness of it all is just kind of all put to the side.
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It's like, eh, it's not really happening.
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So I think that pretty much does it for Wondrous Wednesday.
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Just a little bit of a brief notion of thought.
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So the next time you see yourself or somebody else, just think about all that skin that's
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going to be replaced in a month.
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It's kind of crazy.
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All right.
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Well you all have a good one and see you when I see you.