Amnesia

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Amnesia is a what doctors call a loss or disturbance of memory. In simple terms, it is a loss of memory, that is to say, a person cannot remember certain things. There are many different forms of amnesia, each with its specific cause.

Amnesia can be permanent, or it can be temporary. Damage to the brain, or the use of certain drugs can cause amnesia. Some of these drugs are sedatives. Another well known cause for amnesia can be drinking too much alcohol. Those kinds of causes are called organic, because they can been directly seen. Other causes cannot directly be seen, they are called functional. Rather they are psychological in their nature. People may want to shield off a traumatic event they witnessed, for example.