Anna has noticed that for the past three weeks she is unable to sleep for more than five hours at a time,even though she used to regularly get eight hours of sleep per night.She wakes early in the morning and just can't fall back to sleep.What has Anna developed

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Anna's symptoms of not being able to sleep for more than five hours at a time, despite previously getting eight hours of sleep, and waking early without being able to fall back asleep, are indicative of insomnia. Insomnia is characterized by difficulty falling asleep, staying asleep, or both, leading to insufficient or non-restorative sleep.

Anna Has Noticed That for the Past Three Weeks She