A hangover is characterized by a set of physical and mental symptoms unpleasant, which occur after a high consumption of alcoholic beverages, within the physical symptoms of a hangover was include fatigue, headache, increased sensitivity to light and sound, red eyes, muscle pain and thirst.

As well as signs of increased activity of sympathetic nervous system can accompany a hangover, translating into the increase in the systolic blood pressure, the rapid heartbeat (i.e. , tachycardia), shaking and sweating.

The mental symptoms include dizziness, a feeling dizzy, possible cognitive impairment, as well as a mood to depression, anxiety and irritability.

The symptoms of the Hangover

*At the constitutional level: fatigue, weakness, and the thirst

*Pain: headache and muscle aches and pains

*Gastrointestinal nausea, vomiting and stomach pain

*Dream and biological rhythms: decline in the dream, decreased REM (rapid eye movement), and the increase in the wave sleep slowly

*Senses: vertigo, sensitivity to light and sound

*Cognitive: a decrease of attention and concentration

*Mood: depression, anxiety, irritability

*Sympathetic Hyperactivity: tremor, sweating, increase in the pulse and systolic blood pressure.

The set of symptoms and its intensity can vary from person to person and on each occasion, in addition, the hangover may depend on the characteristics of the type of alcoholic beverage and the amount consumed.

Normally, a hangover begins after several hours after the cessation of the consumption of alcohol, when the person reaches a concentration of alcohol in the blood already diminished and the symptoms may continue until after 24 hours.