Why is vitamin B12 so dangerous?

I wish I had known this earlier about vitamin B12. Vitamin B12, like any other vitamin, is necessary for your body. Most people suggest—I do, too—to have enough vitamins and minerals, includin…

Top stories for Long   Why is vitamin B12 so dangerous? Raza Ekhsan Mulyana, Copywriter, Ghostwriter (2023-present) • Answered January 21, 2025 I wish I had known this earlier about vitamin B12. Vitamin B12, like any other vitamin, is necessary for your body. Most people suggest—I do, too—to have enough vitamins and ... Read more » 10.4K 914   Your response is private Was this worth your time? This helps us show content you find valuable. Absolutely not Definitely yes   Why were Japanese pilots at such a disadvantage during the air battles over Guadalcanal compared to Midway, despite flying the same Zero fighters? SepiaGlyphs • Answered May 19 Japanese pilots at Guadalcanal flew the exact same feared Zeros that dominated Midway. But before they even saw an American plane, they were already losing to an invisible ... Read more » 700 46   How long will old skyscrapers like the Empire State Building stay up? OpenBlueprint • Answered May 19 Built before precision computer modeling, the Empire State Building relies on a brute-force structural strategy: massive over-engineering. Because of this, it has no strict... Read more » 2K 102   How do professional golfers generate so much club head speed? Evan Lee, Sports couch potato since 1968 • Updated July 20, 2021 The other day Sir Nick Faldo, one of the all time greats and now a TV commentator, said there were “half a dozen” ways to create clubhead speed. I can only think of four fo... Read more » 22 2   Why is Steve Jobs faking the iPhone demonstration not considered fraud if Elizabeth Holmes is faking her technology? MetroDispatch • Answered May 19 During the 2007 iPhone launch, Steve Jobs had to follow a strict "golden path" of button presses just so his duct-taped prototype wouldn't crash on stage. While both Jobs an... Read more » 234 25   What screams "I'm poor"? Dennis Watson, Veteran, traveler, veteran traveler. • Answered December 16, 2025 One thing you might not expect. However, I have noticed it’s almost universally true, regardless of country. Poor people have lots of stuff in their homes. Poor people hold ... Read more » 5K 121   Why do batters obey an unwritten rule that you don't swing on a 3-0 count? Why not swing at the fattest pitch you are likely to see if you are trying to win a game? HalftimeLedger, Sports analysis and commentary • Updated June 10 A 3-0 fastball straight down the middle is the fattest pitch in baseball. Yet for decades, swinging at it wouldn't just break an unwritten rule—it would get you benched by ... Read more » 123 24   At what mileage do most cars start having issues? William Wallace, Senior Electronic Design Engineer for Lockheed Aerospace • Answered March 16, 2023 Depends on the car. Mercedes and BMW start falling apart at 50,000 miles. Most other models start having problems at 100,000 miles. Lexus vehicles start having issues bout ... Read more » 2.5K 300   If Zuckerberg applied for a developer job at Facebook incognito, would he actually get hired? Huzaifa • Posted Jun 9 A former Facebook intern who worked directly alongside Zuckerberg was interviewed by New York Magazine a few years ago. The story he shared tells you everything you need to know. Zuckerberg no longe... Read more » 1K 60   How do train drivers know exactly when to brake when the train takes such a long distance to stop? Steve Baker, Senior Software Engineer (2013-present) • Answered April 29 It’s a little known fact that train drivers get paid more than airline pilots. They go through a lot of training - and a good part of that is learning the routes they’ll be ... Read more » 403 41   What’s the hardest part about getting older that no one ever talks about at all? Matthew Bates, Teacher (2009-present) • Answered October 29, 2020 I’m only 40, but there’s something I’ve had to come to terms with as I’ve moved into middle age that I don’t remember anyone warning me about: The slow realization that I am... Read more » 7.7K 562   What makes the number 1/137 so special in the universe, and how would things change if the fine-structure constant were different? NovaPrism • Answered June 1 Physicist Wolfgang Pauli famously joked his first question for the Devil would be, "Why 1/137?" If this mysterious fraction were altered even slightly, our universe could n... Read more » 574 98 Read more in your feed

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Why don't F1 cars refuel during a race?

Before 2010, F1 mechanics pumped highly flammable fuel into blazing-hot cars at 12 liters per second. All it took was a few spilled drops to engulf a pit crew in a massive fireball. The FIA ban…

Top stories for Long   Why don't F1 cars refuel during a race? FeverIndex, Updates from the world of Pop Culture • Updated June 11 Before 2010, F1 mechanics pumped highly flammable fuel into blazing-hot cars at 12 liters per second. All it took was a few spilled drops to engulf a pit crew in a massive ... Read more » 61 3   Why is PHP so complex? Dale Leung, UX Developer, Singapore • Updated December 10, 2016 1. This is Hello World in Assembly Language: .model small .stack 100h .data ... Read more » 1.5K 107   Why is eating oatmeal damaging if you eat it every morning? Lisa Brewitty, Medical Practitioner • Answered May 20 The breakfast cereal you consider healthy because of the health claims on its packaging may be doing quite the contrary inside the body that consumes it is among those nutr... Read more » 415 78   What would happen if I touched uranium? NovaPrism • Answered June 6 If you hold a chunk of bare uranium, your hand won't burn and nothing will glow. The real danger isn't the radiation—it's what happens if you forget to wash your hands afte... Read more » 4.2K 116   Is there anything a MacBook can't do that a Windows laptop can do? Eugene Chia, Military history/equipment buff • Answered February 8, 2023 Quite a few things: This is the big one for me, which a lot of people unfortunately have no idea about. It’s the sole reason I stopped buying MacBooks after 2012. That pictu... Read more » 4.6K 598   Would 10 push-ups a day for a year do anything strength-wise? Angelona - WEIGHT LOSS TRAINER, WEIGHT LOSS TRAINER (2017-present) • Answered December 1, 2025 Hey guys, So, doing pushups every day is great for your fitness level, body form/ shape and overall health but what will happen after you do it.. Remember push ups only work ... Read more » 418 17   Why is "lag" so important for hitting long drives in golf, and how can I practice it effectively? HalftimeLedger, Sports analysis and commentary • Answered May 17 The secret to a professional's 300-yard drive isn't swinging harder. It uses the exact same physics a medieval trebuchet relies on to launch boulders over castle walls. In g... Read more » 17 1   Why do so many people quit 6-figure jobs at Google? Bruce R. Miller, Staff Engineer at Google (2011-present) • Updated May 13, 2019 I left my $500K Staff Engineer job at Google because of an experience with a particular director that finally broke my spirit after six good years there. I was working on a ... Read more » 5.8K 180   Why does unsalted butter exist? Peter Wade, excellent cook, son of two chefs • Updated June 1 I was raised by professional chefs, so I know this answer! It’s a great misnomer that unsalted butter is somehow this alternative invented to replace deliciously salty butte... Read more » 1.9K 80   Why are car manufacturers putting massive wheels on everyday cars when they just get damaged by potholes and cost a fortune to replace? OpenBlueprint • Answered May 27 In the 1990s, 17-inch wheels were strictly for supercars. Today, standard family SUVs roll on massive 22-inch rims that shatter on everyday potholes. Why the dramatic shift... Read more » 1K 159   Why do German households use so little electricity compared to those of North America? Josiah Greenbrier • Answered December 1, 2014 I have lived over 20 years in Germany and come from the US, so I can make a reasonably informed comparison. First, Germans by and large do not use air conditioning or even f... Read more » 4.6K 424   Can we run to the airplane toilets while taking off or landing when we have a diarrhea urge while even the air hostesses have their seat belt on and nobody is supposed to move from their seats? Cheryl Clair, Former Chief Cook at Clair Castle (1973-present) • Answered May 29 I saw this very thing happen a few years ago on a flight. The flight attendant tried to stop a man who was absolutely desperate. He insisted he had to go, right then. The f... Read more » 2K 339 Read more in your feed

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