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SYMPTOMS An Alcohol hangover is associated with a variety of Symptoms that may include dehydration, tiredness, headache, nausea, diarrhea, weakness, difficulty concentrating, anxiety, irritability, sensitivity to light and noise and trouble sleeping. CAUSES Hangovers are multi-causal. Ethanol has a Dehydrating effect (such substances are known as Diuretic s), which causes headaches, dry mouth, and Lethargy . Dehydration causes the brain to shrink away from the skull slightly. This triggers pain sensors on the outside surface of your brain which causes the headache. This can be mitigated by drinking plenty of Water during and after consumption of alcohol. Alcohol is also a metabolic poison, and its impact on the stomach lining probably accounts for nausea. Another factor contributing to a hangover is what results from the breakdown of ethanol via two chemical reactions, aided by enzymes produced by the cells of the Liver . Ethanol is converted to Acetaldehyde by the Enzyme Alcohol Dehydrogenase , and then from acetaldehyde to Acetate by the enzyme Acetaldehyde Dehydrogenase . Acetaldehyde and acetate are both mildly toxic, contributing to the hangover. The two aforementioned reactions also require the conversion of NAD+ to NADH . With an excess of NADH, the Lactate Dehydrogenase reaction is driven to produce lactate from Pyruvate (the end product of glycolysis). This diverts pyruvate from other pathways. One of these pathways affected is Gluconeogenesis , thereby impairing the ability of the liver to supply glucose to tissues, especially the brain. Because glucose is the primary energy source of the brain, this lack of glucose contributes to hangover symptoms such as fatigue, weakness, mood disturbances, and decreased attention and concentration. Finally there are various nervous effects. The removal of the depressive effects of alcohol in the brain probably account for the light and noise sensitivity. In addition, it is thought that the presence of other alcohols (such as Methanol and Fusel Oil s), by-products of the Alcoholic Fermentation also called Congener s, exaggerates many of the symptoms; this probably accounts for the mitigation of the effects when distilled alcohol, particularly vodka, is consumed. The amount of Congeners in the drink may also have an effect. Red wines have more congeners than white wines, and some people note less of a hangover with white wine. Some people believe that Sugar (often found in sweet Cocktail s) worsens hangovers. Nicotine poisoning can often worsen hangovers, as smokers tend to smoke much more than usual while under the influence of alcohol. Genetics also plays a part, as some people seldom, if ever, suffer hangover symptoms no matter how much they drink. The Psychosomatic nature of hangovers shouldn't be ignored either. If people expect a hangover, they tend to feel one. FICTIONAL CURES
CURES Common folk medicine has a wide variety of hangover cures. A good hangover cure should replace essential nutrients lost by the body while counteracting the influence of residual poisons; very few cures do both at once. Among the more common proposed cures are:
In 2003 , a fad hangover cure was a Russian pill, sold in Russia as Antipokhmelin (Anti-Hangover), and marketed as RU-21 in the USA. It is also known as the KGB pill due to its supposed use by the KGB to allow spies to keep a clear head while drinking. More recently, a 2004 clinical study suggested that taking Prickly Pear (''Opuntia ficus indica'') fruit extract several hours before drinking can significantly reduce certain hangover symptoms, including nausea. The authors theorize that the extract may work by suppressing the body's natural immune reaction to congeners. In a review of the medical literature on hangover cures by researchers led by Max Pittler of the Peninsular Medical School at Exeter University , they reported in the 24 December 2005 issue of the '' British Medical Journal '' the following conclusion: "No compelling evidence exists to suggest that any conventional or complementary intervention is effective for preventing or treating alcohol hangover. The most effective way to avoid the symptoms of alcohol induced hangover is to practice abstinence or moderation." {Link without Title} SEE ALSO
http://www.diagnosishealth.com/hangover.htm EXTERNAL LINKS
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