The causes of hypersomnia are different. First of all, it can be because of fatigue, a rhythm disturbance of sleep-wakefulness that is often found in people with night work schedules or flights with a change of time zones. Among the possible causes of hypersomnia ICD 10, there is a need to mention a depression that makes the dream superficial and non-refreshing. Conversely, depression can result in excess of deep sleep with realistic dreams that wake the patient and disrupt the structure of their sleep.
On the other hand, hypersomnia occurs when taking special medications, such as ones with psych stimulating properties. The condition can be a symptom of a wide range of respiratory disorders, especially sleep apnea.
In patients with chronic respiratory failure, hypersomnia foundation may be a symptom of carbon dioxide accumulation and a drop in blood oxygen levels. The patient develops unexpected bouts of drowsiness, sometimes sudden, accompanied by a limp of the whole body in several diseases. Finally, hypersomnia can be a symptom of other diseases of the nervous system, both of inherent or acquired nature.
If it occurs as a reaction to taking certain medications, hypersomnia is considered a secondary disorder. The main causes are CNS (central nervous system) disorders that occurred after some stressful situations. Increased drowsiness can be caused by existing diseases, such as pathological conditions of the brain, impaired vascular activity, or infection.