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<blockquote data-quote="Marguerite" data-source="post: 318026" data-attributes="member: 1991"><p>An aside on sugar - I used to study speech & drama when I was a kid (it was a common thing in the 60s for Aussie parents who coud afford it, to train their kids out of a broad Aussie accent - we call it the "cultural cringe").</p><p></p><p>We used to have to stand up and recite poetry, large chunks of text (from various novels, etc) as well as bone up on theory ("what is a diphthong? Give examples.")</p><p>We rehearsed thoroughly and even the points wherre we had to take a breath were marked on our scripts. These points were marked at places we partly determined ourselves and in consultation with our teacher. They were mainly to remind us to take a breath at a logical point and not risk running out of breath at a bad spot to interrupt the flow of speech. So the breath points were placed at easy intervals.</p><p></p><p>Now, one day while I was waiting for my turn, I was sitting there stuffing myself with sugar. I'd bought a bag of lollies which included a large amount of sherbert (which is mostly sugar). The teacher said nothing to me, just let me go on gorging. </p><p></p><p>Then it wass my turn to get up and practice my set piece. And I was shocked - I couldn't make it between my previously-set breath points! I was finding myself running out of air before I got to the next point! I didn'tfeel especially out of breath, more like the feelnig of having climbed half a flight of stairs maybe. Not puffed but definitely breathing deeper.</p><p></p><p>My teacher then said, "I knew this would happen but I also knew you had to find out for yourself. Sugar makes you run out of breath faster."</p><p>She wasn't able to explain why, she simply stated it as fact. And I wasn't going to argue, since she had demonstrated it beautifully. I had already known to avoid cold food/drink before a voice exam or performance, this sugar thing was a new one.</p><p></p><p>I remember years alter, studying respiratory phsyiology at uni and asking my lecturer about this. he couldn't expalin it either. So I went trawling through the textbook and found it - it's all in the metabolism.</p><p></p><p>When we metabolise food, our body produces carbon dioxide. Our breathing rate is determined at least partly by the carbon dioxide levels in our blood. That's why when you exercise (and your body produces a lot more carbon dioxide in a short time as your muscles burn energy) you breathe heavier, faster and deeper.</p><p></p><p>But different foods produce different amounts of carboon dioxide. Fat, for example - for every gram of fat eaten, your body produces 0.7 g of carbon dioxide. But for carbohydrate, it's gram for gram.</p><p></p><p>Now sugar is concentrated carbohydrate. Your body DOES convert it to glucose (whch your body uses to fuel muscles and stores the excess in various ways) but if you eat a lot of pure sugar, then it's high GI time and all that metabolised carbohydrate hits your bloodstream at the same time. In other words, you get an extra load of carbon dioxide in your bloodstream and your body naturally (and subtly) increases your breathing rate to get rid of the excess.</p><p></p><p>So, something to consider - if you are convinced the child definitely reacts to sugar, then see if you can measure a few things:</p><p></p><p>1) how much sugar before the bad behaviour spills over?</p><p></p><p>2) Are there any other factors? For example, other additives, the environment (ie party).</p><p></p><p>3) What about other high GI carb foods?</p><p></p><p>Because I'm thinking - if a kid reacts to sugar (and it definitely is sugar that is the culprit) then it's likely that they will react to a large dose of high GI/high carb "comfort food". In fact, kids often crave the very foods they shouldn't have and it can be why kidscrave comfort foods.</p><p></p><p>And part of the aside - my parents beggared themselves for my speech lessons but I did learn to talk proper. And eventually, I also learned some useful physiology!</p><p></p><p>Marg</p></blockquote><p></p>
[QUOTE="Marguerite, post: 318026, member: 1991"] An aside on sugar - I used to study speech & drama when I was a kid (it was a common thing in the 60s for Aussie parents who coud afford it, to train their kids out of a broad Aussie accent - we call it the "cultural cringe"). We used to have to stand up and recite poetry, large chunks of text (from various novels, etc) as well as bone up on theory ("what is a diphthong? Give examples.") We rehearsed thoroughly and even the points wherre we had to take a breath were marked on our scripts. These points were marked at places we partly determined ourselves and in consultation with our teacher. They were mainly to remind us to take a breath at a logical point and not risk running out of breath at a bad spot to interrupt the flow of speech. So the breath points were placed at easy intervals. Now, one day while I was waiting for my turn, I was sitting there stuffing myself with sugar. I'd bought a bag of lollies which included a large amount of sherbert (which is mostly sugar). The teacher said nothing to me, just let me go on gorging. Then it wass my turn to get up and practice my set piece. And I was shocked - I couldn't make it between my previously-set breath points! I was finding myself running out of air before I got to the next point! I didn'tfeel especially out of breath, more like the feelnig of having climbed half a flight of stairs maybe. Not puffed but definitely breathing deeper. My teacher then said, "I knew this would happen but I also knew you had to find out for yourself. Sugar makes you run out of breath faster." She wasn't able to explain why, she simply stated it as fact. And I wasn't going to argue, since she had demonstrated it beautifully. I had already known to avoid cold food/drink before a voice exam or performance, this sugar thing was a new one. I remember years alter, studying respiratory phsyiology at uni and asking my lecturer about this. he couldn't expalin it either. So I went trawling through the textbook and found it - it's all in the metabolism. When we metabolise food, our body produces carbon dioxide. Our breathing rate is determined at least partly by the carbon dioxide levels in our blood. That's why when you exercise (and your body produces a lot more carbon dioxide in a short time as your muscles burn energy) you breathe heavier, faster and deeper. But different foods produce different amounts of carboon dioxide. Fat, for example - for every gram of fat eaten, your body produces 0.7 g of carbon dioxide. But for carbohydrate, it's gram for gram. Now sugar is concentrated carbohydrate. Your body DOES convert it to glucose (whch your body uses to fuel muscles and stores the excess in various ways) but if you eat a lot of pure sugar, then it's high GI time and all that metabolised carbohydrate hits your bloodstream at the same time. In other words, you get an extra load of carbon dioxide in your bloodstream and your body naturally (and subtly) increases your breathing rate to get rid of the excess. So, something to consider - if you are convinced the child definitely reacts to sugar, then see if you can measure a few things: 1) how much sugar before the bad behaviour spills over? 2) Are there any other factors? For example, other additives, the environment (ie party). 3) What about other high GI carb foods? Because I'm thinking - if a kid reacts to sugar (and it definitely is sugar that is the culprit) then it's likely that they will react to a large dose of high GI/high carb "comfort food". In fact, kids often crave the very foods they shouldn't have and it can be why kidscrave comfort foods. And part of the aside - my parents beggared themselves for my speech lessons but I did learn to talk proper. And eventually, I also learned some useful physiology! Marg [/QUOTE]
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