What Is Insomnia?
There are three types of insomnia:
What Are Symptoms of Insomnia?
Symptoms of insomnia include:
What Causes Insomnia?
Insomnia may be caused by multiple factors. The main cause of insomnia is believed to be a state of mental and/or physical hyperarousal that interferes with falling asleep or staying asleep.
Causes of insomnia include:
- Changes in sleeping environment
- Loss of a loved one
- Loss of a pet
- Job loss
- Illnesses, especially those that cause stress or difficulty breathing
- Unhealthy lifestyle habits
- Use of or withdrawal from some medications and illegal drugs
- Irregular sleep habits
- Irregular sleep schedules that disrupt the circadian rhythm
- Jet lag
- Shift work
- Mental health problems
- Neurological disorders
- Other sleep disorders
- Disrupted breathing
- Nighttime urinary frequency
- Restless leg syndrome
- Age: teenagers and elderly experience insomnia more frequently
- May not have a known cause
How Is Insomnia Diagnosed?
Sleep disorders are diagnosed with a patient history and physical exam. Tests or procedures that may be used to diagnose sleep disorders or to rule out other underlying conditions include:
- Daily sleep log
- Sleep study (polysomnography)
- Record of activity and movement with a monitor or motion detector, generally worn on the wrist throughout the day and night (actigraphy)
- Home sleep apnea testing
- Home devices that monitor breathing, oxygen saturation, position, and heart rate
- Melatonin sampling
- Core body temperature measurements
- Hormone tests
- Electrocardiogram (“ECG”)
- Computerized tomography (CT) scan
- Pulmonary function tests
- Magnetic resonance imaging (MRI) of the brain
What Is the Treatment for Insomnia?
Treatment for insomnia includes:
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