Epidemiology
What is irregular sleep-wake rhythm disorder?
ISWRD is a pattern of multiple sleep and wake periods within 24 hours
What is ISWRD caused by?
Degeneration of SCN neurons
How often and much must people sleep in a 24 hour period to show signs of ISWRD?
What is one easy behavioral change to obtain a more regular sleep cycle?
Make healthy, consistent bedtime routines in quiet, dark locations
In what demographic is ISWRD most prevalent in?
In older adults with dementia or Alzheimer's
Decreased exposure to light can cause what symptoms of ISWRD?
Weakened central circadian oscillations and disorganization of circadian rhythms
True or False: People with ISWRD sleep about the same amount as people with standard circadian rhythms
True! It's just in an irregular pattern.
What is the recommended level of light exposure for ISWRD treatment?
3000-5000 lux light for 2-4 hours each morning
What is one other mental disorder that has a prevalent correlation with ISWRD?
Schizophrenia
What are some adverse effects of aging that make ISWRD more prevalent?
decreased mobility, increased napping, and medication
How many days must a person show symptoms, through sleep diary or actogram, to be officially diagnosed with ISWRD?
14 days/ 2 weeks
What is the recommended treatment for Irregular sleep-wake rhythm disorder?
Environmental changes, behavioral changes, and light therapy