Permanent hypersomnia (Greek hyper- + somnos ‘sleep’; Latin permanentis ‘permanent’) is chronic severe insomnia, which is characterized by sleep disturbance for more than six months against the background of the patient’s complete mental and physical health. Also, this condition is long-term and not caused by any external factors such as stress, workload or physical overload.
Permanent hypersomnia is based on dysregulation of histaminergic processes in the brain, which leads to increased activity of the reticular formation of the brain stem and disruption of normal sleep. Hypersomnia can occur as a result of the influence of various factors, such as heredity, diseases of the endocrine system, aging, depression, Parkinson's disease, deficiency of B vitamins, toxins and others.
Symptoms of chronic insomnia with permanent hypersomnia include:
Excessive sleep, which becomes a constant feature of the patient. Excessive daytime sleepiness, when even minor rest during the daytime leads to sleep. Somatic disorders such as increased muscle weakness and fatigue. Menomatory imbalance,