A<unk>  is the experience of various unpleasant physiological and psychological effects usually following the consumption of alcohol, such as wine, beer, and distilled spirits.<unk> s can last for several hours or for more than 24 hours. Typical symptoms of a<unk>  may include headache, drowsiness, concentration problems, dry mouth, dizziness, fatigue, gastrointestinal distress (e.g., vomiting, diarrhea), absence of hunger, light sensitivity, depression, sweating, nausea, hyper-excitability, irritability, and anxiety. While the causes of a<unk>  are still poorly understood, several factors are known to be involved including acetaldehyde accumulation, changes in the immune system and glucose metabolism, dehydration, metabolic acidosis, disturbed prostaglandin synthesis, increased cardiac output, vasodilation, sleep deprivation, and malnutrition. Beverage-specific effects of additives or by-products such as congeners in alcoholic beverages also play an important role. The symptoms usually occur after the intoxicating effect of the alcohol begins to wear off, generally the morning after a night of heavy drinking. Though many possible remedies and folk cures have been suggested, there is no compelling evidence to suggest that any are effective for preventing or treating<unk> s. Avoiding alcohol or drinking in moderation are the most effective ways to avoid a<unk> . The socioeconomic consequences of<unk> s include workplace absenteeism, impaired job performance, reduced productivity and poor academic achievement. A<unk>  may also impair performance during potentially dangerous daily activities such as driving a car or operating heavy machinery.
Hangover
Altitude sickness
Superbill
Squawk 
Hovid 
Crutch
Whitlow
Aware 