opinion essay outline Essay Example

opinion essay outline Essay Example opinion essay outline Essay opinion essay outline Essay Essay Topic: Opinion opinion essay outline BY unD3RoaTh Coffee is enjoyed by millions of people around the world every day. This website is a science-based resource developed for health care and other professional audiences and provides the latest information and research into coffee, caffeine and health. Login coffee health topicsresearch centrein-practicemedia centreabout usabout coffeeresources Cardiovascular health Cancer Fluid balance Gallstones Liver function Summary Liver function in Europe Coffee consumption and liver function Potential mechanisms Conclusion References Downloadable PDF Mental performance Neurodegenerative disorders Pregnancy Sports performance Type 2 diabetes print page Epidemiological evidence suggests that moderate coffee consumption may help to reduce the risk of liver cancer, and the risk falls as coffee consumption rises. Epidemiological studies in patients with various liver diseases have all found a positive effect of moderate coffee drinking on limiting disease progression. Patients with alcoholic liver disease who have a higher coffee consumption have a slower rate of fibrosis* than those who drink less coffee. Caffeine consumption is related to less severe fibrosis in patients scheduled for liver biopsy. Coffee consumption is related to slower development of cirrhosis in patients with chronic liver disease. Patients with Hepatitis C-related liver disease, who have a higher consumption of coffee, have a lower rate of disease progression than those drinking less coffee. However, patient stu01es snoul a De Interpreted wltn cautlon as tnere are many conTounaers wnlcn can bias results, e. g. small subject numbers and patients changing their habits or diet as a result of their disease. Several mechanisms underlying the association between moderate coffee consumption and reduced risk of liver cancer and disease progression are under investigation. One of the breakdown products of caffeine, paraxanthine, has been shown to slow down the growth of the type of tissue seen in liver fibrosis, alcoholic cirrhosis and liver cancer. Other alternative mechanisms are related to the anti-carcinogenic effects of cafestol and kahweol, and possible anti- viral effects of chlorogenic acids and caffeic acid. *Many liver diseases cause scar tissue, known as fibrosis, to develop. In the early stages of fibrosis, the liver functions relatively well and few people experience symptoms. But as the inflammation and liver injury continue, scar tissue builds up. This can eventually disrupt the metabolic functions of the liver and lead to cirrhosis in which the liver is severely scarred, its blood flow restricted and its ability to function severely impaired. This information is intended for healthcare and professional audiences. Please consider the environment before printing. homecoffee health topicsresearch centrein-practicemedia centreabout usabout coffeeresources

Why Oil and Water Dont Mix

Why Oil and Water Dont Mix You may have experienced examples of how oil and water dont mix. Oil and vinegar salad dressing separate. Motor oil floats on top of the water in a puddle or in an oil spill. No matter how much you mix oil and water, they always separate. Chemicals that dont mix are said to be immiscible. The reason this happens is because of the chemical nature of oil and water molecules. Like Dissolves Like The saying in chemistry is that like dissolves like. What this means is the polar liquids (like water) dissolve in other polar liquids, while nonpolar liquids (usually organic molecules) mix well with each other. Each H2O or  water molecule is polar because it has a bent shape in which the negatively charged oxygen atom and the positively charged hydrogen atoms are on separate sides of the molecule. Water forms  hydrogen bonds between oxygen and hydrogen atoms of different water molecules. When water encounters nonpolar oil molecules, it sticks to itself rather than mingles with the organic molecules. Making Oil and Water Mix Chemistry has tricks for getting oil and water to interact. For example, detergent works by acting as emulsifiers and surfactants. The surfactants improve how well water can interact with a surface, while the emulsifiers help oil and water droplets mix together. Density and Immiscibility Oil floats on water because it is less dense or has lower specific gravity. The immiscibility of oil and water, however, is not related to the difference in density.