sundowned

/ˈsʌnˌdaʊnd/
adjective
  1. Describing a person, especially an elderly person with dementia, who becomes confused, agitated, or restless in the late afternoon or evening.
    • The nurse noticed that the sundowned patient became anxious every evening around 5 p.m.
    • The caregiver learned to keep the lights bright and the room calm to help her sundowned mother feel less confused.
    • When grandpa gets sundowned, he often thinks it's morning and tries to get dressed for breakfast.
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