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The limbic system has also something to do with the behavioral changes seen under alcohol effects. This system is in charge of controlling feelings and emotions and when altered, it can enhance certain feelings and suppress others.

From happiness to feeling miserable
When alcohol in the form of aldehyde reaches the limbic area, it promotes feelings of satisfaction, at first, including happiness, excitement and arousal; however, as time goes by, this feelings are replaced by less cheerful emotions and can even lead to a depressive state.
Memory is also controlled by the limbic system and when an excessive amount of alcohol is consumed, memory mechanisms are severely affected. Most of the times, you cannot recall what happened the night you got drunk, so you have to live with the guilt and trust that your friends are telling you the truth about that blurry night.
More than just a few cocktails…
Chronic alcohol consumption has severe effects on the brain, for sure. It causes neuronal death and the cells that survive, shrink over time. This affects neuronal connections and therefore, a wide range of brain functions, including motor coordination, learning, memory, temperature regulation and mood control, which can lead to depression and anxiety problems.
Alcohol effects on the liver and heart
The liver is the detoxifying organ of the human body. Toxic substances reach the liver, where they suffer changes that allow the body to get rid of them through urine or excrement.
Chronic alcoholics have more liver damage than a casual drinker. This damage can lead to the development of alcoholic hepatitis and cirrhosis.
In the case of the heart, heartbeats are under the control of a natural pacemaker, which ensures that they occur with the same frequency all the time.
The heart can either start to beat very fast, causing a condition known as tachycardia, or with a desynchronized pace, refer to as arrhythmia.
The terrible hangover
See Also: Does Alcohol Cause Sleep Problems?
The main hangover symptoms are head and muscle aches, fatigue, nausea, vomit, and dizziness, which have to do with the effects it has on the body. For example, alcohol causes dehydration because it makes us pee a lot. It is a diuretic substance, which induces the production of urine and as so, the constant lose of fluids. It also severely irritates the stomach and causes gut inflammation, promoting nausea and vomit.
Hangover symptoms can last from 8 to 24 hours and unfortunately, there is no other cure to it but to keep hydrated and wait for toxic substances to be eliminated by your body.
- QUERTEMONT, E. 2004. Genetic polymorphism in ethanol metabolism: acetaldehyde contribution to alcohol abuse and alcoholism. Mol Psychiatry, 9, 570-81.
- Mindmap by steadyhealth.com
- Photo courtesy of Daniel M. Hendricks by Flickr : www.flickr.com/photos/hendricksphotos/2856523035
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