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zakruti.com » Knowledge, science, education » WIRED
Toxicologist Answers Poison Questions From Twitter - Tech Support

Toxicologist Answers Poison Questions From Twitter - Tech Support

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Rating: 4.0; Vote: 1
Toxicologist Anne Chappelle answers the internet's burning questions about poison. How do antidotes work? Can a pencil give you lead poisoning? Can you overdose on vitamins? Anne
Date: 2022-07-07

Comments and reviews: 10


Some more info on fluoride from Anne!
-The whole reason that they found out that fluoride can help prevent cavities is that beginning in the early 20th century, scientists linked high levels of naturally occurring fluoride in certain community water supplies to low levels of tooth decay. Since then, fluorination has been recognized as an easy way to drastically improve oral health. Actually, parts of India, China, and Africa have areas with high natural fluoride levels in their water, and are taking measures to remove the fluoride. Some countries have programs that fluorinate milk instead of water. There has been more recent evidence that suggested pregnant women should not drink fluorinated water, as it may result in lower IQ scores in their children. But, how much is too much - has not been fully determined.
Should you - or should you not drink fluorinate water is a different issue than eating a tube of toothpaste. It should be obvious that eating a tube of toothpaste will make you sick.
Thanks again! -
- Anne

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Carbonmonoxide poisoning is nefarious for one other reason. It doesn't trigger your breathing response.
Most healthy peaole (excluding copd and athsma here) trigger their breathing by the CO2 level within their blood not the O2 level, you breath because you must get rid of the waste not because you crave the O2 - weird but true.
BUT because you are still in and exhaleing while ingesting CO, CO2 is still expelled, not triggering your -I must breath- response or feeling - hence you could inhale so much CO2 without realiseing you are requireing O2 until it's to late.

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I will never forget the time my boyfriend and i were walking through his schools field, when he saw a quaint little mushroom on the ground. I remember squeaking in terror as he folded over to put it in his mouth. He didn-t even pick it he just - -slurp- - I was less worried about it being poisonous and more worried about the fact it was in a school field where people, animals, and bacteria ran around all day but yeah he-s still alive.
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Great video and great expert!
She did make one mistake though: fluoride is nothing like calcium. One is positively charged and the other one negatively. Fluoride may intercalate between the calcium in the bones and make them brittle but it will not displace it as they are nothing alike. Result is the same: brittle bones, but the explanation was not correct

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-if you've been bitten by a brown recluse spider. KEEP THE SPIDER-
So I've never caught a spider before, and now that I've been bit, you want me to catch a spider for the first time ever! It's not gonna go well! He's just gonna keep biting me, that's what's gonna happen! Who told you this, the spider! Who's side are you on!
(props to Nate Bargatze)

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As a person who has drank bleach, I can tell you right now that putting water into your body AND milk actually makes it worse. It caused a reaction in my stomach that created a bubbly sort of bloody vomit that completely constricted airflow into my lungs and I passed out
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We call the lead in pencils lead because of a historical misnomer: graphite was known as black lead because it was confused with galena and other lead ores. They made pencils before they understood the chemistry involved, and so the term stuck.
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Regarding water-soluable vitamins, I heard a good line once about all those fancy supplements pushed by -fitness gurus-: -Your body can only process so much of that stuff at once. Those pills are just giving you expensive pee. -
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The biggest drop of sweat just slid down my forehead when I heard that guu's question if pencil lead can kill a person if stabbed.
I stabbed a classmate as a kid on his palm, it was only as deep to cover the graphite tip.

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3: 04 So You are saying that fluoride actually displaces calcium in the bones. Now why does that sound familiar to me? Oh right because Radium does the same thing- or what radium did to the Radium Girls.
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