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It is estimated that 45 million people in Europe were affected by sleep disorders in 2010, at a cost of € 35.4 billion. Insomnia, the most common sleep disorder, is characterised by difficulties in falling asleep, staying asleep, or early awakening. In order to “qualify” for insomnia, such symptoms should impact on daytime functioning.
Read our newsletter about the impacts of insomnia on cognitive health:
