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They are useful in metal mining and some recycling, but other than that biofilms can be quite harmful. They cause dental plaque, grow on surgical supplies, implants and water.


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Chlorine is a reactive substance and an oxidizing agent. It can cause damage to surfaces exposed to it such as eyes, skin etc but it cannot penetrate deeper. Chlorine can damage your hair by oxidation — hair becomes rough and brittle. This is not same as hair loss — chlorine doesn't cause hair to fall out because it cannot penetrate to the follicles. See ...


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The habit of burying food in modern dogs is an instinct that came from the grey wolf (Canis lupus) long ago, and originates from a phenomenon called surplus killing, where a carnivore would kill more than it could eat, and often use it at a later time. Many, if not all, carnivores possess behaviour patterns which allow utilization of a kill at a later ...


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It's a popular public sentiment that - GM foods like tomatoes (flavr savr) will affect our health.. Is there any logical scientific explanation behind this? GM organisms can have different genes and gene expression than natural ones, so they can create more protein or different proteins. Proteins can be toxic, can cause allergy and can catalyze ...


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Bananas seem to contain lots of dietary fiber that help move consumed food through the intestines (popular article) thereby promoting digestion. Whether one should eat bananas before or after dinner is probably a debatable subject (Yahoo forum).


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Fermentable carbohydrates may cause problems in some IBS patients. Recent work suggests that restricting these foods may improve the symptoms in some patients. http://www.nature.com/nrgastro/journal/v11/n4/abs/nrgastro.2013.259.html More information can be found by looking for the FODMAP diet.


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I agree with @inf3rno: caffeine is a stimulant that acts on the brain and various other parts of the body (Snyder et al., 1981) and I wish to elaborate on its psychopharmacology. Caffeine's effects in the brain are mediated through adenosine A1 and A2 receptors (Daly et al., 1983). This results in a variety of actions (Fredholm et al., 1999). Most notably, ...


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Caffeine is a stimulant, which helps you release the energy your body stored. Caffeine is a central nervous system and metabolic stimulant,[12] and is used both recreationally and medically to reduce physical fatigue and to restore alertness when drowsiness occurs. It produces increased wakefulness, faster and clearer flow of thought, increased ...


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There are some recipes available on the web, my answer is based on this webpage and this information: The process itself is rather easy and you can either use ready bought apple juice, homemade juice or apple cider (basically unfiltered apple juice). You will need some specially cultivated yeast, baker's yeast is generally not recommended since it might ...



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