0026名無しさん@1周年2019/11/11(月) 22:10:01.14ID:a0UAGLm70 集中して考える能力と、それを持続する能力の高い人間は本当に脳のカロリー消費が高いと思う アインシュタインはグリア細胞が特に発達してたって話だしな 0027名無しさん@1周年2019/11/11(月) 22:11:01.70ID:O8+MCtUW0 デスクワークだけしててもめちゃくちゃ腹減るからな こんなのは言われなくてもわかる 0028名無しさん@1周年2019/11/11(月) 22:11:35.93ID:ideKbidp0 ブタは何も考えてないってことか? 0029名無しさん@1周年2019/11/11(月) 22:11:42.39ID:5yqJ/XiX0 普通の人でも摂取カロリーの3割は脳の活動のために消費されるんだっけ? 0030名無しさん@1周年2019/11/11(月) 22:12:25.67ID:FHsKAINE0 デヴはバカなの? 0031名無しさん@1周年2019/11/11(月) 22:13:10.77ID:yjRdFz2P0 うつ病になると太るんだよね 0032名無しさん@1周年2019/11/11(月) 22:13:22.62ID:VhoQ5pwf0 炭水化物を取らないと脳が働かなくなるからな 0033名無しさん@1周年2019/11/11(月) 22:13:32.85ID:bSEB/01X0>>1 How Many Calories Can the Brain Burn by Thinking?
By Emma Bryce - Live Science Contributor 2 days ago Health
Here's how much energy you can burn when you put your mind to the test.
In 1984, the World Chess Championship was called off abruptly, due to the worryingly emaciated frame of Anatoly Karpov, an elite Russian player who was competing for the title. Over the preceding five months and dozens of matches, Karpov had lost 22 lbs. (10 kilograms), and competition organizers feared for his health.
Karpov's wasn't alone in experiencing the extreme physical effects of the game. While no chess competitor has experienced such profound weight loss since then, elite players can reportedly burn up to an estimated 6,000 calories in one day — all without moving from their seats, ESPN reported.
Is the brain responsible for this massive uptake of energy? And does that mean that thinking harder is a simple route to losing weight? To delve into that question, we first need to understand how much energy is used up by a regular, non-chess-obsessed brain.
When the body is at rest — not engaged in any activity besides the basics of breathing, digesting and keeping itself warm — we know that the brain uses up a startling 20% to 25% of the body's overall energy, mainly in the form of glucose.
That translates to 350 or 450 calories per day for the average woman or man, respectively. During childhood, the brain is even more ravenous. "In the average 5- to 6-year-old, the brain can use upwards of 60% of the body's energy," said Doug Boyer, an associate professor of evolutionary anthropology from Duke University. Boyer researches anatomical and physiological changes associated with primate origins.
This glucose-guzzling habit actually makes the brain the most energy-expensive organ in the body, and yet it makes up only 2% of the body's weight, overall. 0034名無しさん@1周年2019/11/11(月) 22:14:38.57ID:IXIOKiX70 何も考えなくても脳はエネルギー消費しまくるよ 待機電力がすごい 0035名無しさん@1周年2019/11/11(月) 22:15:03.01ID:hKkloYYd0 脳は糖分しか受け付けないんじゃなかったっけ? 0036名無しさん@1周年2019/11/11(月) 22:15:22.57ID:T6mD7JOG0 そのうちカーズはカロリー消費をやめた。 0037名無しさん@1周年2019/11/11(月) 22:15:26.96ID:bSEB/01X0>>1 Hungry brain
Humans aren't unique in this regard. Together with Duke University evolutionary anthropology graduate student Arianna Harrington, who studies energy usage in mammal brains, Boyer conducted research revealing that very small mammals such as the tiny tree shrew and the minuscule pygmy marmoset devote just as much of their body energy to the brain as humans do.
Boyer believes the reason is that despite brains being lightweight, human brains — and the similarly glucose-hungry brains in tree shrews and marmosets — are large relative to the rest of the body. "If you have a really big brain relative to your body size, then it's probably going to be more expensive metabolically," Boyer told Live Science.
Most of the energy hauled up by this organ is devoted to enabling neurons in the brain to communicate with each other, via chemical signals transmitted across cell structures called synapses, said Harrington. "A lot of the energy goes towards firing a synapse. That involves a lot of transportation of ions across membranes, which is thought to be one of the most expensive processes in the brain."
In addition, the brain never really rests, she explained; when we sleep, it still requires fuel to keep firing off signals between cells to maintain our body's functions. What's more, servicing the brain are fleets of cells that exist to channel nourishment toward neurons. And these cells also need their share of the body's glucose in order to survive and continue doing their job. The huge resources devoted to building a brain also help to explain why during periods of intensive development, when we're 5 or 6 years old, our brains scarf up almost three times the amount of energy that our adult brains need. 0038名無しさん@1周年2019/11/11(月) 22:15:33.81ID:bSEB/01X0>>1 Exercising the mind?
Since the brain is such a big energy-guzzler, does that mean that the more we put this organ to work, the more energy it'll slurp up — and the more calories we'll burn?
Technically, the answer is yes, for cognitively difficult tasks. What counts as a "difficult"' mental task varies between individuals. But generally, it could be described as something that "the brain cannot solve easily using previously learned routines, or tasks that change the conditions continuously," according to Claude Messier, a professor of psychology and neuroscience at the University of Ottawa in Canada, who has studied cognition, diabetes and brain metabolism. Such activities might include learning to play a musical instrument or plotting innovative moves during an intense game of chess.
"When you train to learn something new, your brain adapts to increase energy transfer in whatever [brain] regions are activated by the training," said Messier. Over time, as we become more skilled at performing a particular task, the brain no longer has to work as hard to accomplish it, and so doing that task will eventually require less energy, Messier explained.
Nevertheless, in those early stages of learning to perform a mentally taxing task, surely we can justify eating a sugary snack to boost our energy reserves?
If you simply feel the need for a mood-boosting sugar rush, then yes. But if you believe your deep thinking will burn off that sugary snack, then unfortunately, no.
Because against the backdrop of the brain's huge overall energy usage, which is devoted to a multitude of tasks, the energy required just to think harder is actually comparatively tiny. "Most of what's going on, what slurps up the brain's energy, is what we might call 'under the hood,''" explained Messier. "We are unaware of most of the activity going on in the brain. And a lot of that activity is unrelated to the conscious activities like learning how to sing or play the guitar," he said.
In other words, learning a new task or doing something difficult isn't actually the most energy-taxing part of the brain's work. In fact, "When we learn new things or learn how to do new activities, the amount of energy that goes into that 'new'' activity is rather small compared to the rest of the brain's overall energy consumption," Messier added.
As Harrington explained, "The brain is able to shunt blood [and thus energy] to particular regions that are being active at that point. But the overall energy availability in the brain is thought to be constant. " So, while there might be significant spikes in energy use at localized regions of the brain when we perform difficult cognitive tasks, when it comes to the whole brain's energy budget overall, these activities don’t significantly alter it. 0039名無しさん@1周年2019/11/11(月) 22:16:01.13ID:bSEB/01X0>>1 Pumped for action
But if that's true, how do we explain why Karpov grew too skinny to compete in his chess competition? The general consensus is that it mostly comes down to stress and reduced food consumption, not mental exhaustion.
Happen If You Shot a Gun In Space?
When the body is at rest — not engaged in any activity besides the basics of breathing, digesting and keeping itself warm — we know that the brain uses up a startling 20% to 25% of the body's overall energy, mainly in the form of glucose.
That translates to 350 or 450 calories per day for the average woman or man, respectively. During childhood, the brain is even more ravenous. "In the average 5- to 6-year-old, the brain can use upwards of 60% of the body's energy," said Doug Boyer, an associate professor of evolutionary anthropology from Duke University. Boyer researches anatomical and physiological changes associated with primate origins.
This glucose-guzzling habit actually makes the brain the most energy-expensive organ in the body, and yet it makes up only 2% of the body's weight, overall. 0040名無しさん@1周年2019/11/11(月) 22:16:03.33ID:ovFkWDF70 やはり米食ったほうがいいな 0041名無しさん@1周年2019/11/11(月) 22:16:38.62ID:bSEB/01X0>>1 Hungry brain
Humans aren't unique in this regard. Together with Duke University evolutionary anthropology graduate student Arianna Harrington, who studies energy usage in mammal brains, Boyer conducted research revealing that very small mammals such as the tiny tree shrew and the minuscule pygmy marmoset devote just as much of their body energy to the brain as humans do.
Boyer believes the reason is that despite brains being lightweight, human brains — and the similarly glucose-hungry brains in tree shrews and marmosets — are large relative to the rest of the body. "If you have a really big brain relative to your body size, then it's probably going to be more expensive metabolically," Boyer told Live Science.
Most of the energy hauled up by this organ is devoted to enabling neurons in the brain to communicate with each other, via chemical signals transmitted across cell structures called synapses, said Harrington. "A lot of the energy goes towards firing a synapse. That involves a lot of transportation of ions across membranes, which is thought to be one of the most expensive processes in the brain." 0042名無しさん@1周年2019/11/11(月) 22:17:56.93ID:rxt3ZbOz0 だからL角砂糖ガリガリ食ってるんだろ 0043名無しさん@1周年2019/11/11(月) 22:18:16.12ID:tIztA5JQ0>>28 ブタは体脂肪率低いんだぞ? 0044名無しさん@1周年2019/11/11(月) 22:20:04.98ID:Z25YhKHj0 頭がいい人は甘いものすきやな人がおおいってよくいわれてたりするよね 0045名無しさん@1周年2019/11/11(月) 22:20:08.47ID:rtpD13Qw0 脳に無理矢理思考を促す機械を直結させて痩せる未来のダイエット法が見えてきたな… 0046名無しさん@1周年2019/11/11(月) 22:22:29.68ID:kIyhIHQl0 脳は特定のたんぱく質しか消費できないんでしょ。脳が死ぬと体も必然的に死ぬから体は脳に優先的に栄養を融通する。 0047名無しさん@1周年2019/11/11(月) 22:23:24.40ID:6tVmBXzP0 デブは馬鹿ばっかりって俺の持論は概ね正しかったわけだ 0048名無しさん@1周年2019/11/11(月) 22:24:01.61ID:Iqm1WdzP0 夢中になってるときって空腹感じないけど、 そういうときは案外考えてないってことなのか? 0049名無しさん@1周年2019/11/11(月) 22:24:23.49ID:Xs046Che0 3倍のスカーフってなんだよ! 0050名無しさん@1周年2019/11/11(月) 22:25:20.52ID:cLYoZ78d0 恋をしてると好きなひとの事ばっかり考えちゃって痩せるんだよね 0051名無しさん@1周年2019/11/11(月) 22:26:23.35ID:4dGbyioQ0>>31 それ単純に引き籠もるからじゃね? 0052名無しさん@1周年2019/11/11(月) 22:31:05.87ID:Z3wwjjAq0 考え過ぎると鼻血が出る 0053名無しさん@1周年2019/11/11(月) 22:32:15.82ID:VF1efvMT0 脳の活動には糖が使われる事くらい底辺校のJKでも知ってるよな 0054名無しさん@1周年2019/11/11(月) 22:32:25.29ID:ILpqOxe80 いつもトンボ鉛筆の佐藤さんのことを考えてますが? 0055名無しさん@1周年2019/11/11(月) 22:32:38.63ID:Mg4ik/F40 デスノートのLっていたじゃん、俺は子供の頃アレに憧れてて教室で「うう、糖分が足りない」とか言いながら駄菓子のチョコ食べてたわけ。で、ある日いつもの「糖分が足りない」やってたのよ。机からお菓子とり出そうとしてね。そしたら皆クスクス笑ってるの。 つづく 0056名無しさん@1周年2019/11/11(月) 22:32:53.28ID:VF1efvMT0>>1 脳の活動には糖が使われる事くらい底辺校のJKでも知ってるよな 0057名無しさん@1周年2019/11/11(月) 22:33:05.84ID:KytzcoqW0>>12 糸谷がいる 0058名無しさん@1周年2019/11/11(月) 22:33:10.58ID:YF4xI7v70 デスノートで「L」が言ってた。 0059名無しさん@1周年2019/11/11(月) 22:33:51.90ID:DC1O5lkI0 ここまでデスノートなしか 時代は変わったな 0060名無しさん@1周年2019/11/11(月) 22:34:59.23ID:P3NIuQ7L0 こいつまだ誤訳やってんだ。キモ。 ハゲいじりだけやってたら? 0061名無しさん@1周年2019/11/11(月) 22:36:07.63ID:VbAVJZ3r0 頭の良い人はチョコみたいな甘いものをたくさん食べるイメージだけど 太っていないような気がするもんな 0062名無しさん@1周年2019/11/11(月) 22:36:41.87ID:KOVuuXhb0 手塚治虫 「チョコーーーーーー――――――っ」 0063名無しさん@1周年2019/11/11(月) 22:37:40.31ID:AdCqOLeB0 考えようが考えまいが 脳はエネルギーを消費してるんじゃね? 0064名無しさん@1周年2019/11/11(月) 22:37:51.93ID:XDllYla10 数学の問題を解くと痩せるってのが女子の間で流行りそう 数学科卒のワイは女の子に数学のレクチャーしてお持ち帰りさせてもらうわ 0065名無しさん@1周年2019/11/11(月) 22:39:00.03ID:4ImoIIN50 どっかに正しい訳が載るまで待てないのか 0066名無しさん@1周年2019/11/11(月) 22:39:14.41ID:7ljaWaAY0>>35 脂肪からのケトンでも脳は活動できる もし糖質しか使えなかったらほんの短期間の飢餓で死ぬ 0067名無しさん@1周年2019/11/11(月) 22:39:41.37ID:ltZqGizs0 効率が悪いのか良いのか 0068名無しさん@1周年2019/11/11(月) 22:40:13.60ID:FmotraLw0>>64 女はそういうのとっくに知ってるぞ 0069名無しさん@1周年2019/11/11(月) 22:41:17.37ID:vhBPy8LP0 やったー無理しなくてもダイエットに成功したわ→ガンでした 0070名無しさん@1周年2019/11/11(月) 22:41:26.62ID:aw3+LWhZ0 【東京】秋葉原のあの巨大なエロゲーム広告、取り外される 東京都が現地調査 千代田区は掲示した会社に指導へ ★3 https://asahi.5ch.net/test/read.cgi/newsplus/1573479322/0071名無しさん@1周年2019/11/11(月) 22:42:05.94ID:VPny/+520 考えるだけで痩せるのでなく、考えるだけで禿げるんだろ 0072名無しさん@1周年2019/11/11(月) 22:42:11.77ID:Xf4Rt1Q00 【日本勝利】韓国のLGディスプレイ、iPhone11向け有機ELに品質不良発生 100万台以上のパネルを廃棄し9月の供給ゼロに★6 https://asahi.5ch.net/test/read.cgi/newsplus/1573477393/0073名無しさん@1周年2019/11/11(月) 22:42:15.81ID:TD1GcOuj0>>13 トランプに謝れ 0074名無しさん@1周年2019/11/11(月) 22:42:26.71ID:UDjc8DvA0 考え事をしてる時は食わないだけなのでは? 0075名無しさん@1周年2019/11/11(月) 22:42:38.78ID:V/ZlJ6QE0 デブはたいてい頭使っていない 0076名無しさん@1周年2019/11/11(月) 22:43:17.18ID:V/ZlJ6QE0>>68 でもできないんだなあ・・それが 0077名無しさん@1周年2019/11/11(月) 22:43:25.87ID:zffn60I+0 スキンダイビングしてると考えることがどれだけ酸素とエネルギー費やしてるか理解できるわ 0078名無しさん@1周年2019/11/11(月) 22:43:40.33ID:V/ZlJ6QE0>>73 トランプは頭使っていないぞ・・・ 0079名無しさん@1周年2019/11/11(月) 22:43:43.55ID:PgP60keh0 SPECの当麻紗綾がいつも餃子山盛り食ってたな 東大出でブレインストーミングの天才 0080名無しさん@1周年2019/11/11(月) 22:45:12.08ID:V/ZlJ6QE0>>9 痩せるのは金玉だけ 0081名無しさん@1周年2019/11/11(月) 22:45:19.95ID:GNT4CRb+0>>1