Alcohol...

Effects

Main article: Long-term effects of alcohol

The primary effect of alcoholism is to encourage the sufferer to drink at times and in amounts that are damaging to physical health. The secondary damage caused by an inability to control one's drinking manifests in many ways. Alcoholism also has a significant social costs to both the alcoholic and their family and friends. Alcoholics have a very high suicide rate with studies showing between 8% and 21% of alcoholics commit suicide. Alcoholism also has a significant adverse impact on mental health. The risk of alcoholics committing suicide has been determined to be 5080 times higher than the general public average.[25]

Physical health effects

It is common for a person suffering from alcoholism to drink well after physical health effects start to manifest. The physical health effects associated with alcohol consumption may include cirrhosis of the liver, pancreatitis, epilepsy, polyneuropathy, alcoholic dementia, heart disease, increased chance of cancer, nutritional deficiencies, sexual dysfunction, and death from many sources.

Mental health effects

Long term misuse of alcohol can cause a wide range of mental health effects. Alcohol misuse is not only toxic to the body but also to brain function and thus psychological well being can be adversely affected by the long-term effects of alcohol misuse. Psychiatric disorders are common in alcoholics, especially anxiety and depression disorders, with as many as 25% of alcoholics presenting with severe psychiatric disturbances. Typically these psychiatric symptoms caused by alcohol misuse initially worsen during alcohol withdrawal but with abstinence these psychiatric symptoms typically gradually improve or disappear altogether.[26] Panic disorder can develop as a direct result of long term alcohol misuse. Panic disorder can also worsen or occur as part of the alcohol withdrawal syndrome.[27] Chronic alcohol misuse can cause panic disorder to develop or worsen an underlying panic disorder via distortion of the neurochemical system in the brain.[28]

Social effects

The social problems arising from alcoholism can be significant. Being drunk or hung over during work hours can result in loss of employment, which can lead to financial problems including the loss of living quarters. Drinking at inappropriate times, and behavior caused by reduced judgment, can lead to legal consequences, such as criminal charges for drunk driving or public disorder, or civil penalties for tortious behavior. An alcoholic's behavior and mental impairment while drunk can profoundly impact surrounding family and friends, possibly leading to marital conflict and divorce, or contributing to domestic violence. This can contribute to lasting damage to the emotional development of the alcoholic's children, even after they reach adulthood. The alcoholic could suffer from loss of respect from others who may see the problem as self-inflicted and easily avoided.

Alcohol withdrawal

Main article: Alcohol withdrawal syndrome

Alcohol withdrawal differs significantly from most other drugs because it can be directly fatal. Drugs which have a similar mechanism of action to alcohol also have a similar risk of causing death during withdrawal, including barbiturate and benzodiazepine withdrawal. For example it is extremely rare for heroin or cocaine withdrawal to be fatal. When people die from heroin or cocaine withdrawal they typically have serious underlying health problems which are made worse by the strain of acute withdrawal. An alcoholic however, who has no serious health issues has a significant risk of dying from the direct effects of withdrawal if it is not properly managed.

Alcohol's primary effect is the increase in stimulation of the GABAA receptor, promoting central nervous system depression. With repeated heavy consumption of alcohol, these receptors are desensitized and reduced in number, resulting in tolerance and physical dependence. Thus when alcohol is stopped, especially abruptly, the person's nervous system suffers from uncontrolled synapse firing. This can result in symptoms that include anxiety, life threatening seizures, delirium tremens and hallucinations, shakes and possible heart failure.

Acute withdrawal symptoms tend to subside after 1 - 3 weeks. Less severe symptoms (e.g. insomnia and anxiety) may continue as part of a post withdrawal syndrome gradually improving with abstinence for a year or more. Withdrawal symptoms begin to subside as the body and central nervous system makes adaptions to reverse tolerance and restore GABA function towards normal. Other neurotransmitter systems are involved, especially glutamate and NMDA.