We’ve learned so much about insomnia by now. There is a great deal of studies about this sleeping disorder as it is very annoying and frightfully popular. And it’s true, many of us know it from our own experience. But in case of hypersomnia only few of us have hardly heard the word.
Hypersomnia is characterized by excessive amount of sleep. Hypersomnia patients (or hypersomniacs) generally have prolonged sleep at night, as well as they strongly tent to sleep during daytime. They often complain of sleepiness and irresistable fatigue. Quite often these symptoms are combined with anxiety and fear, or, on the contrary, depression and indifference towards everything that’s going on around them. Insomniacs usually have an insuperable inclination to fall asleep suddenly at any time of the day.
There are two kinds of this sleeping disorder. Short-term hypersomnia is just a temporary disorder that is caused by recent stress or emotional strains, as well as it can accompany some general diseases, for example, flu, intoxication, etc. Long-term (or chronic) hypersomnia can develop in course of many years and, as a result, is very difficult to treat.
However, hypersomnia is mostly caused by serious brain damage, uremia, fibromyalgia, brain tumours that can lead to high intracranial pressure. It can also be and also can be the consequence of clinical depression, abuse of somnolent preparations, some forms of encephalitis.