Answer:
Insomnia
Step-by-step explanation:
Insomnia is the inability to fall asleep or stay asleep at night, or wakening too early, it results in a non-restorative or unrefreshing sleep, it affects not only the mood of the person that is under its effects but their health as well, it can led to anxiety, stress and depression, some of the causes might be, high stress levels, a change on work or travel schedule, bad habits like eating too much before going to bed, watching TV, Computers screens, videogames, smartphones before sleeping among others.