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A hangover (veisalgia) is the sum of unpleasant physical effects following heavy consumption of alcohol. The most common reported characteristics of a hangover are feelings of extreme thirst, lethargy, nausea, sensitivity to sunlight and noise, and headache. Hypoglycemia, dehydration, and vitamin B12 deficiency are all theorized causes of hangover symptoms.

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. The symptoms vary from person to person, and occasion to occasion, usually beginning several hours after drinking. It is not clear whether hangovers affect cognitive abilities.

Causes


Hangovers are multi-causal. Ethanol has a dehydrating effect (such substances are known as diuretics), which causes headaches, dry mouth, and lethargy. Dehydration causes the brain to shrink away from the skull slightly. This can be mitigated by drinking water after consumption of alcohol. Alcohol's impact on the stomach lining can account for nausea. Due to the increased NADH production during metabolism of ethanol by alcohol and aldehyde dehydrogenases, excess NADH can build up and slow down gluconeogenesis in the liver, thus causing hypoglycemia.

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Chaser - Offers hangover prevention products.
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Cheerz LLC - Nutrition supplement designed to support the body's natural ability to process acetaldehyde, alcohol's most toxic metabolite.

Drinkers Champion - Herbal formula to help prevent hangovers. Includes product formula and free sample.
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500 Glami Co, Ltd. - Manufactures an herbal tonic for hangovers.
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Hangover Prevention Formula - Sells different products to cure hangovers.

Hangover Solutions Inc. - An effervescent tablet with natural ingredients to relieve a hangover.
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Lifestyle Marketing - Natural hangover cure relief, also works detoxification.
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MSM Distributors - Natural food substance in capsule form to assist with hangover relief.

Spirit Sciences USA, Inc. - Makes RU-21, an all-natural supplement that regulates alcohol metabolism to prevent hangovers and reduce some alcohol-related damage to the vital organs. It does not prevent intoxication but reduces the after-effects.
Meta Description: [ RU21.com, the makers of RU-21, an all-natural supplement that regulates alcohol metabolism to reduce some alcohol-related damage to the vital organs. Take RU-21 and Wake Up Clear and Feeling Great! ]

404 Ultimate Hangover Stopper - Sells a product to cure hangovers.
Meta Description: [ Hangover Stopper, the cure for hangovers! Drank too much? Hangoverstopper will ease the after effects! ]

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