How did I miss this?!?!
I know the first batch isn’t finished yet, but add me to the list of people hoping for a second batch. 
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Not fair! My posting average is only 5 times a year! The worst part is I’m lurking less often while working from home than I was in the office. 
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And now we’ve found you’re second problem. 
In exploring acids and chems that could be used to accelerate aging in a biological environment like the interstitial tissues of the body, I found something surprising. Titanium is impervious to most acids and bases, especially at normal body temperatures… however, one thing Titanium literally dissolves in is good ol lactic acid. Yep… that stuff that builds up in your muscles when you work them hard.
That said, there aren’t any indicators that relevant levels of lactic acid even transits within interstitial tissues.
The body truly is a wonderland.
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That’s interesting because if you remember the titanium-coated magnet implants I originally reported were affixed to muscles.
The question arises: is lactic acid even “free-flowing” in the body, or does it stay within the cells and get carried off by the veinous system? It may never touch an implant, even one implanted in a muscle.
I’m pretty far from being a biologist or doctor but wouldn’t the lactic acid be constrained to the circulatory and muscular systems? And I think (speculation here) most titanium implants like screws, bars, and pins are typically attached to bone of some kind. Again, I am nowhere near being a doctor or biologist so… 
It will. It is a part of your blood/body. Following are some attached reading if anyone wants. I was curious. My best guess from all this? It will be fine.
Pure titanium dissolved in 128mmol of lactic acid. Normal adult range is .5 - 2.2 mmol. Not saying it isn’t possible for it to affect the implant. Just unlikely.
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Some interesting thing to keep in mind - most good-quality piercings are made of titanium as well, and they are often put through muscles (tongue, lip, eyebrow, cheek etc.).
Since my tongue piercing hasn’t dissolved in 20 years, I think we will be all fine. Though, to be honest, I rarely do a hard workout for my tongue muscles… 
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Paging Rosco
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And I’m creepy?
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Ok ya I really had to work hard not to make a comment on that one. I mean you should at least write the alphabet with your tongue every once in a while…
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3.0 is considered critical, if you have enough lactic acid in your body to dissolve titanium you have bigger problems…or are a xenomorph
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I’m kind of surprised that there isn’t an industry standard test substance. We have a recipe for faux Moon regolith, why not for (for the lack of a more precise term) human juice?
Surely that would accelerate testing in all sorts of medical devices.
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Semi related.
For peoples urine and blood, we add Hydrochloric acid to them before testing occasionally.
If Amal wants, I can soak one in 1M HCL, or 12M HCL.
After typing that out, I remembered one of the studies I posted, had titanium in sheep teeth. The saliva and grinding would accelerate the titanium breaking down. I assume that is a way to have “accelerated” testing.
I just take the blood and stuff and start the testing process. I don’t read peoples stuff, so I wouldn’t have known that.
For sure.
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No point I feel like really.
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Yea I have pretty much a whole clinical lab to myself for 40 hours a week, it’s pretty sweet
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This is how you get evil geniuses and or some really stupid but fun ideas
That’s unfortunate, you should take better care of yourself
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Is there any better, more precise, term than “human juice”? 
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Meat Marinade ?
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