31 October 2019 Author : Alexandra Pais da Cunha Insomnia has very significant functional, biological and emotional consequences, which can have harmful effects: In health; On productivity; In the quality of life. What characterizes insomnia? This health problem is characterized by a subjective complaint of dissatisfaction with the quality and quantity of sleep, marked by difficulties that may be associated with: Start sleeping; Keep sleeping; Early awakening. Difficulties occur more than three nights a week and cause clinically significant discomfort and / or deficits in social, occupational or behavioral functioning . This is because insomnia is often accompanied by various daytime symptoms, for example: Excessive drowsiness; Fatigue; Decrease of energy; Changes in emotional state; Difficulty maintaining attention or concentration. Thus, insomnia is a 24-hour problem , not just an overnight problem. Insomnia can have many causes and there are many health professionals who can be involved in its diagnosis and treatment. Ask your general practitioner about the best approach in your case. The content published in the Health Guide is intended for the general public and is provided for informational and educational purposes only. It does not replace individual medical assessment, diagnosis, or personalized clinical advice from a qualified healthcare professional. The content is produced or reviewed by physicians and other healthcare professionals at Hospital da Luz and is based on the knowledge available at the time of publication or the most recent update, as indicated at the beginning of each item.