How To Fix a Computer That Won't Turn On

 

What To Do When Your Desktop, Laptop, or Tablet Won't Start It's an awful way to start a day... you press the power button on your computer and nothing happens. Few computer problems are more frustrating than when your computer won't boot. There are many reasons why a computer won't turn on and often very few clues about what might be the problem. The only symptom is usually the simple fact that "nothing works" which isn't much to go on. Add to this the fact that whatever is causing your computer not to start could be an expensive part of your PC to replace - like the motherboard or CPU. Do not fear because all may not be lost! Here's what you need to do: Read #1 below (it'll make you feel better). Pick the best troubleshooting guide (#2 - #9) based on how your computer is acting or #10 if your PC stops at any point because of an error message. Note: The "computer won't start" troubleshooting guides below apply to all PC devices. In other words, they'll help if your desktop or laptop won't turn on, or even if your tablet won't turn on. I'll call out any important differences along the way. Also, all are applicable no matter what Windows operating system you have installed on your hard drive, including Windows 10, Windows 8, Windows 7,Windows Vista, and Windows XP. Steps 1 through 5 even apply to other PC operating systems like Linux. Blend Images/Hill Street Studios/Vetta/Getty Images 1.  Don't Panic! Your Files are Probably OK When faced with a computer that won't start most people tend to panic, worried that all the data on their PC is gone forever. It's true that the most common reason a computer won't start is because a piece of hardware has failed or is causing a problem but that hardware isn't usually ahard drive, the part of your computer that stores all of your files. In other words, your music, documents, emails, and videos are probably safe - just not accessible at the moment. So take a deep breath and try to relax. There's a good chance you can figure out exactly why your computer won't start and then get it back up and running. Don't Want to Fix This Yourself? See How Do I Get My Computer Fixed? for a full list of your support options, plus help with everything along the way like figuring out repair costs, getting your files off, choosing a repair service, and a whole lot more. © Acer, Inc. 2.  Computer Shows No Sign of Power Try these steps if your computer will not turn on and is showing no sign at all of receiving power - no fans running and no lights on the laptop or tablet, nor on the front of the computer's case if you're using a desktop. Important: You may or may not see a light on the back of your desktop PC depending on the kind of power supply you have and the exact cause of the problem. This goes for the power adapter you may be using for your tablet or laptop as well. How To Fix a Computer That Shows No Sign of Power Note: Don't worry about the monitor yet, assuming you're using a desktop or an external display. If the computer is not turning on because of a power issue then the monitor certainly can't display anything from the computer. Your monitor light will likely be amber/yellow if your computer has stopped sending information to it. More » 3.  Computer Powers On... and Then Off Follow these steps if, when you turn your computer on, it promptly powers back off. You'll probably hear the fans inside your computer turn on, see some or all of the lights on your computer turn on or flash, and then it will all stop. You won't see anything on the screen and you may or may not hear beeps coming from the computer before it shuts off by itself. How To Fix a Computer That Turns On and Then Off Note: As in the previous scenario, don't worry about the state your external monitor is in, if you have one. You may have a monitor issue as well but it's not possible to troubleshoot it quite yet. More » © Dell, Inc. 4.  Computer Powers On But Nothing Happens If your computer seems to be receiving power after turning it on but you don't see anything on the screen, try these troubleshooting steps. In these situations, the power lights will stay on, you'll likely hear the fans inside your computer running (assuming it has any), and you may or may not hear one or more beeps coming from the computer. How To Fix a Computer That Turns On But Displays Nothing This situation is probably the most common in my experience working with computers that won't start. Unfortunately it's also one of the most difficult to troubleshoot. More » © Dell, Inc. 5.  Computer Stops or Continuously Reboots During the POST Use this guide when your computer powers on, shows at least something on the screen, but then stops, freezes, or reboots over and over again during the Power On Self Test (POST). The POST on your computer may happen in the background, behind your computer maker's logo (as shown here with the Dell laptop), or you may actually see frozen test results or other messages on the screen. How To Fix Stopping, Freezing, and Reboot Issues During the POST Important: Don't use this troubleshooting guide if you encounter an issue during the loading of the operating system, which occurs after the Power On Self Test is complete. Troubleshooting Windows related reasons why your computer won't turn on begin with #6 below. More » 6.  Windows Begins to Load But Stops or Reboots on a BSOD If your computer begins to load Windows but then stops and displays a blue screen with information on it then try these steps. You may or may not see the Windows splash screen before the blue screen appears. This kind of error is called a STOP error but is more commonly referred to as aBlue Screen of Death or a BSOD. Receiving a BSOD error is a common reason why a computer won't turn on. How To Fix Blue Screen of Death Errors Important: Choose this troubleshooting guide even if the BSOD flashes on screen and your computer restarts automatically without giving you time to read what it says. More » 7.  Windows Begins to Load But Stops or Reboots Without an Error Try these steps when your computer powers on, starts to load Windows, but then freezes, stops, or reboots over and over again without generating any kind of error message. The stopping, freezing, or reboot loop may happen on the Windows splash screen (shown here) or even on a black screen, with or without a flashing cursor. How To Fix Stopping, Freezing, and Reboot Issues During Windows Startup Important: If you suspect that the Power On Self Test is still going on and that Windows has not yet started to boot, a better troubleshooting guide for why your computer won't turn on might be #5 above. It's a fine line and sometimes hard to tell. Note: If your computer won't start and you see a blue screen flash or remain on the screen, you're experiencing a Blue Screen of Death and should use troubleshooting guide #6 above. More » 8.  Windows Repeatedly Returns to Startup Settings or ABO Use this guide when nothing but the Startup Settings (Windows 8 - shown here) or Advanced Boot Options (Windows 7/Vista/XP) screen appears every time your restart your computer and none of the Windows startup options work. In this situation, no matter which Safe Mode option you choose, your computer eventually stops, freezes, or restarts on its own, after which you find yourself right back at the Startup Settings or Advanced Boot Options menu. How To Fix a Computer That Always Stops at Startup Settings or Advanced Boot Options This is a particularly annoying way in which your computer won't turn on because you're trying to use Windows' built-in ways to solve your problem but you're getting nowhere with them. More » 9.  Windows Stops or Reboots On or After the Login Screen Try this troubleshooting guide when your computer powers on, Windows shows the login screen, but then freezes, stops, or reboots here or anytime after. How To Fix Stopping, Freezing, and Reboot Issues During Windows Login The stopping, freezing, or reboot loop may happen on the Windows login screen, as Windows is logging you in (as shown here), or any time up to Windows fully loading. More » NTLDR is Missing. 10.  Computer Doesn't Fully Start Because of an Error Message If your computer turns on but then stops or freezes at any point, showing an error message of any kind, then use this troubleshooting guide. Error messages are possible at any stage during your computer's boot process, including during the POST, at any time during the loading of Windows, all the way up to the Windows desktop appearing. How To Fix Errors Seen During the Computer Startup Process Note: The only exception to using this troubleshooting guide for an error message is if the error is a Blue Screen of Death. See #6 above for a better troubleshooting guide for BSOD issues. More » More "Computer Won't Turn On" Tips Still can't get your computer to turn on? See Get More Help for information about contacting me for more help on social networks or via email, posting on tech support forums, and more.   http://pcsupport.about.com/od/findbysymptom/tp/computer-wont-turn-on.htm

Why Is Junk Food So Popular? Here Are Three Reasons

 

Dwight Eschliman/Getty Images Updated November 01, 2014. Question: If junk food is so bad for the body and bad quality overall, why is it so popular? You'd think no one would touch it." Mimi -- About.com User Answer: That's a really good question, and I certainly can't say that I have the answer. I do have some thoughts on the subject -- and maybe one or more are correct, so here goes: First, let me back up and define 'junk foods.' Basically, it's the stuff you eat that has little to no nutritional value, usually combined with ingredients that are bad for you, or is high in calories, when consumed in excess. So that means candy, chips, cookies, cake, sugary soft drinks, greasy burgers, hot dogs, French fries, ice cream, and most things that served at fast food restaurants qualify as junk foods. So why do so many people eat junk foods? Here's three possible reasons: #1 It's Cheap I think one big reason junk food is popular is because a lot of it is cheap to buy. I mean you can go to most any fast food restaurant and order something off a 'dollar' menu of some sort. If you have a couple of bucks in your wallet you can buy a full meal.  Same story at the grocery store. Cheap snacks, inexpensive high-sodium and high-fat meals can be found on the shelves. Healthier foods -- like fresh fruits and vegetables -- tend to be more expensive. Those bags or cups of instant ramen noodles cost less than 50 cents, whereas an orange costs a dollar.  Although a lot of junk food is cheap to buy up front, I think the argument can be made that cheap junk foods end up being more expensive in the long run due to their negative impact on health. #2 It's Easy This reason goes along with the being cheap part. Junk food is lurking in vending machines, convenience stores, and even stores that don't normally sell food items might have snacks and sodas near the cashiers. And those instant meals I already mentioned? They're easy to prepare, and you can store a bunch of them in your kitchen cabinets for a long time.  Of course, fast foods live up to the name. You can order a fast food meal and then eat it a minute or two later. Or you can order your meal from your car to can save time by wolfing it down while you drive away. That drive-thru thing isn't good, though. Not only is the food bad for your health, but dropped fries can accumulate in your car, under the seat. And that gets kind of gross. #3 It's Sweet, Fatty or Salty (Or All Three) Rarely do junk foods tempt you with delicate or complicated flavors. They pretty much hit you hard with sweet, fatty and salty flavors. I think those simple flavors might be preferred by people who are picky eaters -- it could be the slightly bitter flavor of many vegetables turns some people off, especially kids.  But it's more than flavor. Various combinations of sugar and fat make for textures people like. Fat makes foods feel smooth and creamy, like ice cream. Starchy potato and corn chips cooked in hot oil have a satisfying crunch. That's not to say that healthy foods don't have a nice texture, but sometimes the textures of fresh fruits and vegetables take a little getting used to. Then It Becomes a Habit Since junk foods are easy to find, easy to make, and a lot of them just flat out taste good, consuming them becomes a habit. That's the real problem. I mean eating a candy bar now and then or snarfing down a bag of fries once in awhile isn't all that big a deal. But when junk foods make up a big part of your daily diet, then you run the risk of becoming overweight and obese, plus you're not going to get enough of the nutrients and fiber your body needs for good health. So, next time you find yourself standing in line at a burger joint or staring at a vending machine, think about how your choice could affect your health. Then walk away and find something better. http://nutrition.about.com/od/recipesmenus/fl/Why-Is-Junk-Food-So-Popular-Heres-Three-Reasons.htm

Cientistas explicam mistério dos raros fumantes de pulmões saudáveis

 

James Gallagher Correspondente de Saúde, BBC News Predisposição genética das pessoas é chave inclusive para desenvolver novos medicamentos Por que algumas pessoas parecem ter pulmões saudáveis apesar de fumarem muito e por muitos anos? Após analisarem mais de 50 mil casos, cientistas britânicos chegaram à uma conclusão. O estudo, feito pela equipe da agência de pesquisa do governo Medical Resarch Council, mostrou que mutações no DNA das pessoas aprimoram as funções pulmonares e mascaram o impacto mortal causado pelo cigarro. Segundo os cientistas, a descoberta pode culminar na criação de novos medicamentos para melhorar as funções pulmonares. No entanto, eles fizeram questão de ressaltar que não fumar será sempre é melhor opção. Usando dados de condições de saúde e informações genéticas de voluntários, os pesquisadores analisaram problemas como a chamada doença pulmonar obstrutiva crônica (DPOC), que pode causar falta de ar, tosse e infecções. Ao se comparar fumantes e não fumantes, e também pessoas com e sem DPOC, os pesquisadores descobriram trechos do DNA que reduzem o risco da doença. Assim, fumantes com "bons genes" tinham um risco menor de desenvolver DPOC do que os que tinham "genes ruins". Pesquisadores fizeram questão de ressaltar que não há nenhuma solução mágica que vá garantir proteção contra o tabaco Segundo o professor da Universidade de Leicester Martin Tobin, um dos pesquisadores do estudo, os genes parecem afetar a maneira com que os pulmões crescem e respondem aos danos. "Não há nenhuma solução mágica que garanta proteção contra o fumo. Essas pessoas ainda terão pulmões menos saudáveis do que teriam se não fumassem", disse Tobin à BBC. "A melhor coisa que alguém pode fazer para evitar a DPOC e outras doenças relacionadas ao cigarro, como o câncer, é parar de fumar." O hábito de fumar também aumenta o risco de doenças do coração e de vários tipos de câncer – nada disso foi analisado no estudo. Os cientistas também descobriram parte do código genético que é mais comum em fumantes do que em não-fumantes. Ainda é necessário mais pesquisa, mas os cientistas afirma que essa diferença parece alterar as funções cerebrais e o grau de facilidade que cada um se vicia em nicotina. "(A descoberta) traz fantásticas novas pistas sobre como o corpo trabalha, em áreas que tínhamos pouco conhecimento antes. São descobertas que podem culminar em incríveis progressos em termos de desenvolvimento de novos remédios", afirmou Tobin. O estudo foi apresentando em um encontro da European Respiratory Society e publicado na revista científica Lancet Respiratory Medicine. O chefe de pesquisas da British Lung Foundation, Ian Jarrold, afirmou à BBC: "Essa descoberta representa um passo significativo para obtermos uma visão mais clara sobre o fascinante e intrincado funcionamento dos pulmões." "Entender a predisposição genética é essencial não apenas para nos ajudar a desenvolver novos tratamentos para pessoas com doenças no pulmão, mas também nos ensina sobre como pessoas saudáveis podem cuidar melhor de seus pulmões."   http://www.bbc.com/portuguese/noticias/2015/09/150928_genetica_fumantes_mdb.shtml

Well, Hello There

 

Aug 23, 2015 Photograph by Laura Keene, National Geographic Your Shot “It was a surreal experience to be in the presence of these magnificent creatures,” writes Your Shot member Laura Keene of photographing this seemingly approachable pair of bears in Alaska’s Arctic National Wildlife Refuge. Keene says they stood and appeared to wave in greeting when a nearby pair of cubs captured their attention. Polar bears, she says, “congregate on the barrier islands off Kaktovik in northern Alaska every fall to partake of leftovers from Inupiat whaling [activity] before the Beaufort Sea freezes and they move on to hunt seal.” http://photography.nationalgeographic.com/photography/photo-of-the-day/polar-bears-waving-alaska/

10 Things to Know About Thyroid Disease, Foods and Drinks

 

Lori Andrews/Moment/Getty Images Written or medically reviewed by a board-certified physician. See About.com's Medical Review Policy. Updated December 20, 2014. (Links are in blue =CTRL+Click to open them) For people with thyroid disease -- whether hypothyroid (underactive thyroid) or hyperthyroid (overactive thyroid), Hashimoto's disease or Graves' disease, or other conditions, there are some important things to know about foods and drinks, and their interaction with your health and medications. Here are ten things to know about thyroid conditions and your diet, food and beverages. 1. About Goitrogenic Foods Goitrogens are substances -- occurring naturally in certain foods -- that can cause the thyroid gland to enlarge, which is called a goiter. Goitrogenic foods can also function like an antithyroid drug and actually slow down the thyroid and make it underactive (hypothyroidism.) The main goitrogenic foods are cruciferous vegetables like broccoli, cauliflower, kale, and cabbage, among others, as well as soy foods. Here is a more detailed list of common goitrogens. If you still have a functional (or semi-functional thyroid gland), and are hypothyroid, you should be careful not to overconsume raw goitrogenic foods. If you are hyperthyroid, you may want to talk to a nutritional practitioner about incorporating more goitrogenic foods into your diet. If you are hypothyroid, you don't need to avoid goitrogenic foods entirely. The enzymes involved in the formation of goitrogenic materials in plants can be at least partially destroyed by heat, allowing you to enjoy these foods in moderation if they are steamed or cooked. If you are hypothyroid, you don't need to avoid goitrogenic foods entirely. The enzymes involved in the formation of goitrogenic materials in plants can be at least partially destroyed by heat, allowing you to enjoy these foods in moderation if they are steamed or cooked. 2. Coconut Oil You may hear coconut oil recommended for thyroid patients, and while it can be a healthful option, it's not a cure-all or treatment for thyroid disease. It's just a thyroid-friendly option to replace other fats and oils in your diet. 3. Soy May Be a Problem Soy both acts as a goitrogen, and inhibits thyroid hormone absorption. Don't overconsume soy, especially processed and high-phytoestrogen forms of soy, like shakes, powders, soy milk, bars, and supplements. You may want to eliminate soy, or limit soy consumption to fermented forms, like tempeh, in small quantities as a condiment, and not as a primary protein replacement. If you are hyperthyroid, you may want to talk to a nutritional practitioner about incorporating more soy into your diet. 4. Coffee And Thyroid Medication You should not take coffee until an hour after you've taken your thyroid hormone replacement medication. Otherwise, the coffee can affect absorption, and make your thyroid medication less effective. (Note: if you absolutely must have both your thyroid medication and coffee at the same time, talk to your physician about the liquid, capsule form of levothyroxine, which is apparently not affected by coffee.) 5. Calcium-Fortified Orange Juice And Your Thyroid Medication You should not take calcium-fortified orange juice with your thyroid medication. Wait at least three to four hours after taking your thyroid medication before taking calcium-fortified juice, calcium supplements, or iron supplements, as they can interfere with your absorption of thyroid medication. 6. Iodized Salt In some areas of the world, iodized salt is an essential way to prevent iodine deficiency, cretinism and retardation due to iodine deficiency in pregnant women. In the U.S., however, many people have limited their salt intake, or stopped using iodized salt. Keep in mind that about one-fourth of the U.S. population is now somewhat deficient in iodine, and that percentage appears to be on the rise again, after years of stable iodine levels (due to iodized salt intake.) You need enough iodine -- but not too much -- for the thyroid to function properly. 7. Celiac, Gluten and Wheat A subset of autoimmune thyroid patients have dietary-triggered autoimmunity, due to celiac disease, or a wheat/gluten intolerance. For these patients, going on a gluten-free diet may eliminate antibodies, and cause a remission of their autoimmune thyroid disease. Even for some patients who do not have celiac disease, going on a gluten-free diet may reduce antibodies, reduce bloating, and help with energy and weight loss. 8. High-Fiber Foods Many thyroid patients struggle with constipation, and extra weight. One of the key tactics that can help is increasing fiber intake, particularly from foods. Here is a list of high-fiber foods for thyroid patients. Keep in mind, however, that if you switch to a high-fiber diet, you should get your thyroid rechecked in eight to twelve weeks to see if you need a dosage readjustment, as fiber can affect absorption of medication. 9. Mini-Meals Many people hear that to raise metabolism, you should eat "mini-meals" -- or "graze" all day on smaller meals. But this may be exactly the wrong thing to do for thyroid patients who are trying to lose weight. The reason why fewer meals, spaced further apart may be more effective for thyroid patients than mini-meals and grazing is in helping to manage the leptin and insulin levels. 10. Water One of the most powerful things thyroid patients can do to help their health and metabolism is to drink enough water. Water helps your metabolism function more efficiently, and can help reduce your appetite, get rid of water retention and bloating, improve your digestion and elimination, and combat constipation. Some experts even say that we should drink one ounce of water per pound of scale weight.   source :http://thyroid.about.com/od/thyroidbasicsthyroid101/a/10-Things-To-Know-About-Thyroid-Disease-Foods-And-Drinks.htm

What powers the pumping heart?

 

Led by University of Toronto Physiology Professor Anthony Gramolini and his collaborator, Professor Thomas Kislinger in the Department of Medical Biophysics, the team used high-throughput methods to identify more than 500 membrane proteins on the surfaces of cardiac contractile cells, which are likely to have a critical role in normal heart function. Credit: Image courtesy of University of Toronto Researchers at the Ted Rogers Centre for Heart Research have uncovered a treasure trove of proteins, which hold answers about how our heart pumps -- a phenomenon known as contractility. Led by University of Toronto Physiology Professor Anthony Gramolini and his collaborator, Professor Thomas Kislinger in the Department of Medical Biophysics, the team used high-throughput methods to identify more than 500 membrane proteins on the surfaces of cardiac contractile cells, which are likely to have a critical role in normal heart function. The proteins may also play a part in heart failure and abnormal heartbeat patterns known as arrhythmias. "In addition to providing a new understanding of what makes our hearts pump, these findings could also help researchers uncover new information about how heart disease affects the signal pathways in our hearts. That might pave the way to find ways to prevent or reverse those changes," says Gramolini. During the study, the researchers found about 500 novel molecules that have been conserved throughout evolution. These molecules haven't been studied in the heart and little is known about what they do in other tissues. The group's research focused on a protein called transmembrane protein 65 (Tmem65). By studying human stem cells and zebrafish using cell imaging and biochemical techniques, the researchers discovered that Tmem65 is involved in communication and electrical processes known as electrical coupling and calcium signaling. The team showed that Tmem65 regulates the connection point between adjacent cardiac contractile cells where it contributes to making the heart contract normally. Removing the protein had fatal consequences. The team also identified Tmem65 as the first critical tool for stem-cell researchers to monitor the maturation of cells in the heart's two main chambers, known as ventricles. "These proteins are theoretically targetable for intervention as well as basic study. In this study, our focus was on Tmem65, but there are 555 proteins that we identified and showed that they are present throughout many species and are conserved throughout evolution-- at least in the mouse and the human -- in the heart's membrane-enriched contractile cells. Tmem65 was only the number-one candidate in our study, but theoretically, we have 554 other proteins to work through," says Gramolini. The study, published in Nature Communications, also provides the first resource of healthy human and mouse heart-cell proteins that will help scientists develop a better understanding the mechanisms involved in cardiac disease. Gramolini says the findings are essential for understanding cardiac biology and hopes they open the door for further study into health and disease in his lab and others. "We need to figure out what all of these molecules are doing. My team and I hope our research sets the stage for other people to begin to pick up some of this work," says Gramolini. "These are molecules that haven't been studied, but must play some role in heart function. If a protein is conserved in evolution, generally it must have a critical function. We are very excited to look at the role of a number of these new proteins." Story Source: The above post is reprinted from materials provided by University of Toronto. The original item was written by Erin Howe. Note: Materials may be edited for content and length. Journal Reference: Parveen Sharma, Cynthia Abbasi, Savo Lazic, Allen C. T. Teng, Dingyan Wang, Nicole Dubois, Vladimir Ignatchenko, Victoria Wong, Jun Liu, Toshiyuki Araki, Malte Tiburcy, Cameron Ackerley, Wolfram H. Zimmermann, Robert Hamilton, Yu Sun, Peter P. Liu, Gordon Keller, Igor Stagljar, Ian C. Scott, Thomas Kislinger, Anthony O. Gramolini.Evolutionarily conserved intercalated disc protein Tmem65 regulates cardiac conduction and connexin 43 function. Nature Communications, 2015; 6: 8391 DOI: 10.1038/ncomms9391 http://www.sciencedaily.com/releases/2015/09/150925131425.htm

Efeitos da Coca-Cola no seu corpo

 

Segundo uma pesquisa em artigos científicos e algum saber próprio, o farmacêutico Wade Meredith, escreve sobre os efeitos da ingestão da Coca-Cola no organismo. A Coca-Cola é sem dúvida das bebidas mais consumidas em todo o mundo, com uma média de 1,6 mil milhões de garrafas todos os dias.  A questão dos açúcares e da obesidade causada pela ingestão de refrigerantes já é conhecida pelo público geral. Adicionalmente, as ações abrasivas da Coca-Cola também já são conhecidas, uma vez que é mesmo usada para desentupir canalização. No entanto, o artigo publicado visa os efeitos sistémicos e locais da Coca-Cola, passo-a-passo, após a ingestão da bebida. Os dados abaixo referem-se à ingestão de uma porção de 330 mL da bebida.   Primeiros 10 minutos Equivale a ter ingerido 10 colheres de chá de açúcar, correspondendo a 100% da dose diária recomendada pelos nutricionistas para a ingestão de açúcar. Na verdade só não vomita, devido ao enjoo que causaria, porque o ácido fosfórico camufla esse sabor.   Aos 20 minutos Dispara a concentração de glucose no sangue e há um pico de insulina. Isto leva a uma ativação dos hepatócitos (células do fígado) no sentido de produzir e armazenar gordura a partir do excesso de glucose. Vários estudos em ratazana e rato mostram que isto pode estar relacionado com fenómenos de diabetes tipo 2 e obesidade. Saber mais aqui.   Aos 40 minutos Concluída a absorção da cafeína que provoca dilatação das pupilas e aumento da pressão sanguínea. Adicionalmente, no cérebro os receptores da adenosina são bloqueados mantendo o estado de alerta e impedindo-o de adormecer.   Aos 45 minutos Libertação de dopamina pelos neurónios dos centros de prazer, com efeitos análogos, embora menos severos, às drogas como a heróina. Saber mais aqui eaqui.   Mais de 60 minutos O ácido fosfórico liga iões Magnésio, Zinco e Cálcio no intestino delgado levando a um aumento da taxa metabólica e da excreção de Cálcio pela urina. Saber mais aqui e aqui. A cafeína também tem efeito diurético que leva à excreção de todos estes electrólitos, diminuindo as suas concentrações no organismo para valores que podem ser críticos. Evidência publicada aqui. Alguns fenómenos de irritabilidade devidos à diminuição do pico de glucose no sangue. A Coca-Cola não é só uma bebida extremamente açucarada como também possuí vários electrólitos refinados e cafeína. Em conjugação, estudos tem mostrado os seus efeitos sobre a incidência da obesidade, diabetes tipo 2 e problemas cardiovasculares. Fonte: The Renegade Pharmacist http://www.fciencias.com/2015/08/03/efeitos-da-coca-cola-no-seu-corpo/

9 Cinnamon Tea Recipes to Help the Body Heal Itself

 

Cinnamon tea is a convenient way to get a spice that has been used for thousands of years in ancient cultures for its healing properties. You can benefit from it by simply brewing it up and sipping it as you would any other tea. Cinnamon acts as a natural antibacterial and antimicrobial agent in the body, which may help to explain why it’s been regarded for its medicinal value for quite some time. It’s always best to help the body heal itself, and employing a natural spice like cinnamon can help further that process along. Next time you are out, pick up organic cinnamon sticks to have them handy for when you need them. 1. Sudanese Cinnamon Tea Cinnamon tea doesn’t have to be complicated to make in order to capture its healing benefits. This Sudanese cinnamon tea recipe shows that all you need is cinnamon sticks, water, and tea to get the job done. This will give the tea more flavor than just adding hot water to cinnamon, and you can also add sugar to taste, although if you are trying to use it to heal you may want to drink it without the sugar. Here she’s using ceylon tea, so its bringing additional antioxidants and immune system defense to the table. Photo: Je Suis Alimentageuse 2. Thaicia’s Traditional Cold Remedy This tea is a wonderful concoction, with each ingredient serving to help bolster the body back to health. Cinnamon is included for its anti-inflammatory properties and the boost it gives the immune system. She’s also included lemons for their Vitamin C, which will also help support the immune system. There’s honey added to help sweeten things up and make it easier to drink, but also because honey has antibacterial properties. There’s even garlic and ginger, which might not be the best-tasting duo when you have a cold, but the cinnamon, lemon, and honey help with the taste. 3. Crock Pot Chai Tea Latte This is a chai latte that is made in a way that doesn’t use any dairy and a healthy mix of ingredients that are sure to h A traditional chai latte is made with milk, and using coconut milk instead of cow’s milk will make you less likely to get congested after drinking it. If you are trying to drink cinnamon to help fight or avoid a cold, going with this tea latte is a better choice than a conventional chai latte from the coffee shop. She’s made this using a Crock Pot so you can cook it up and leave it simmering for a pick-me-up whenever you need it throughout the day. 4. Warming Cinnamon Tea Cinnamon has a warming effect on the body, and is therefore helpful in overcoming the symptoms of several conditions. This tea takes things back to basics, showing you that you can make a cinnamon tea just using cinnamon and your choice of an all-natural sweetener, like honey. They’re recommending that you go with raw honey, and we’d further add that you should make sure it’s organic, or from a local source that you trust. When consuming such a simple tea it’s important to only use the best possible ingredients. Photo: House of Treats 5. Lemon and Cinnamon Tea This is a simple combination of cinnamon, lemon, cloves, and tea that can help your body heal itself through the use of all-natural ingredients. The lemon provides Vitamin C, while the cloves provide additional anti-inflammatory properties. While she’s using Earl Grey for the type of tea, you can always customize this to your own taste. Using green tea would be one way to get more antioxidants and other substances that help the body, both short term and long term. The English version of this recipe starts halfway down the page. 6. Ginger Cinnamon Detox Tea The combination of ginger and cinnamon is a quite powerful one, and this tea isdesigned to help you detox. You’ll often find healthy ingredients like this combined together, especially when their flavors complement each other. In this case ginger and cinnamon are both rather harsh flavors, and there’s no sugar or sweetener used in this recipe to offset this. It’s meant to be a detoxifying tea, so you don’t want to add anything to it that the body is going to have trouble with. Drink this tea at the first sign of a cold to help warm the body up and shorten the cold’s duration, possibly even avoiding it. 7. Cinnamon Sore Throat Tea For those times when your throat is bothering you, try sipping this sore throat tea made with cinnamon and other ingredients designed to soothe the situation. This is a milky concoction that uses cinnamon and honey, as well as ginger to not only help soothe the throat, but also combat the cause of it. The milk they’re using isn’t cow’s milk, it’s your choice of either almond, rice, or coconut, so you won’t be filling your system with dairy at a time when you could be coming down with a cold. You’ll also score the extra nutrients these milks provide. Photo: Gourmande in the Kitchen 8. Spiced Persimmon Turmeric Tea This tea has a lot going on, but what shouldn’t be overlooked is the use of high-quality cinnamon sticks. It’s going to infuse the tea with the goodness of cinnamon, in addition to everything else it contains. Turmeric is gaining attention for its healing benefits to the body, but has long been known by several cultures that use it everyday in their cooking as well as in tea form. Ginger has a cleansing effect on the body and can help reduce symptoms in a number of conditions. Persimmon is known for its anti-cancer properties and can help protect you from colds. 9. Ginger-Clove-Cinnamon Tea The trio of ginger, cloves, and cinnamon come together nicely in this tea and promise to help the body heal in a natural way. All three of these ingredients are anti-inflammatory, so you can use them to treat a myriad of symptoms from any condition caused by or worsened by inflammation. Ginger and cinnamon will both help your digestive system as well, which in turn helps you process foods and break down their nutrients better, helping your overall health and ability to heal. The instructions themselves are as easy as adding boiling water to the three ingredients.   http://bembu.com/cinnamon-tea-recipes

A new Ear on the Universe

 

The Documentary Visions of the universe exert an eerie silence. But as Aleem Maqbool reveals in A New Ear on the Universe all this is set to change. Physicists are racing to develop a cosmic hearing aid which will bring us the Universe’s equivalent of sound - gravitational waves It’s the largest lab on the surface of the planet - located in the Columbia Basin region of southeastern Washington. LIGO, the Laser Interferometer Gravitational-wave Observatory, with its giant laser beam arms totalling 5 miles across the remote Hanford desert, is seeking to detect gravitational waves -- ripples in the fabric of space-time. First predicted by Einstein in his theory of general relativity, gravitational waves are produced by exotic events involving coalescing black holes, neutron stars and objects perhaps not yet discovered and even the remnants of gravitational radiation created by the birth of the universe. The giant lab is atmospherically set adjacent to a former nuclear reactor whose village workers have long disappeared, to be replaced by a new community of scientists. Aleem Maqbool journeys to Hanford home to the remote LIGO observatory as, following a major upgrade, the detector completes the final trial runs as it prepares to go live. He examines the science of gravitational waves, and how it’s both an eye and an ear on the motion of distant objects. He scrutinises its cutting edge technology of almost unimaginable sensitivity to enable detection of some of the universe’s most dramatic events. And he examines the passion and the motivation of individuals who have worked for nearly three decades on a single science experiment, engaging in the stories of those who invented a whole new branch of physics in order to prove the last piece of Einstein's theory of general relativity, and to “hear” the universe in a whole new way. With its laser beam tubes the observatory will be chasing a signal from deep space as small as a thousandth the diameter of a proton What will we expect to hear? The death cries of a supernovae? The mating calls of merging black holes?   http://www.bbc.co.uk/programmes/p032v402

Production Process May Yield Self-Healing Tires

 

Fri, 09/25/2015 - 8:38am Greg Watry, Digital Reporter In the winter of 1839, Charles Goodyear was already experimenting with rubber. He was enamored with the substance, saying “There is probably no other inert substance which so excites the mind.” As the Goodyear Tire & Rubber Company, which neither Goodyear or his family were associated with, tells it, the inventor was displaying his latest gum-and-sulfur formula. In a moment of excitement, he waved the substance in the air, flinging it from his hands. It landed on a nearby stove, and rather than melting, the substance took on a leather consistency. So goes the story of the accidental discovery. Today, sulfur vulcanization is the only method for manufacturing automobile tires, making them durable, yet still elastic. However, chemists have discovered a way to bypass the vulcanization step while yielding tire-grade rubber as a result. Further, the tire has self-healing properties.   Their work was published in ACS Applied Material & Interfaces. The work is the result of a collaboration between the Leibniz Institute for Polymer Research, the Tampere Univ. of Technology and the Dresden Univ. of Technology.      “Rubber is made of long strand-like molecules tangled and bound together,” according to the American Chemical Society. “When rubber is pierced or torn, critical chemical bonds break and can’t be re-vulcanized, making a damaged tire useless.” Using the commercially available and widely used bromobutyl rubber, the researchers used a carbon and nitrogen additive, which allows rubber to reform important bonds. When punctured or torn, the rubber recovers the durability and elasticity that usually only results from the vulcanization process. Tests showed the rubber was capable of healing itself at room temperature. Heating the rubber to 212 F for the first 10 min sped the mending process up. Eventually, a punctured tire may simply call for a car to be left in the garage for a period of time. After eight days, the rubber tire can withstand pressures at 754 psi, 20 times more than the normal amount of pressure exerted on a tire. Reinforcing agents, such as carbon black or silica, can further strengthen the product, according to the researchers.    While a flat tire may not be the bane of a motorist’s existence like traffic, science is taking steps towards making the inconvenience more manageable. http://www.rdmag.com/articles/2015/09/production-process-may-yield-self-healing-tires