Excessive daytime sleepiness

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Obesity, Sleep & Internal medicine
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Excessive daytime sleepiness
Synonyms	N/A
Pronounce	N/A
Specialty	N/A
Symptoms	Drowsiness, fatigue, irritability, difficulty concentrating
Complications	Accidents, reduced quality of life, impaired cognitive function
Onset	Any age
Duration	Chronic or acute
Types	N/A
Causes	Sleep disorders, medication side effects, mental health disorders, substance abuse
Risks	Obesity, depression, shift work, sleep deprivation
Diagnosis	Polysomnography, Multiple Sleep Latency Test, Epworth Sleepiness Scale
Differential diagnosis	Insomnia, narcolepsy, sleep apnea, restless legs syndrome
Prevention	N/A
Treatment	Lifestyle changes, medication, therapy
Medication	Stimulants, wakefulness-promoting agents
Prognosis	N/A
Frequency	Common
Deaths	Rare, but can lead to fatal accidents

Excessive daytime sleepiness (EDS) is a condition characterized by persistent sleepiness and often a general lack of energy, even during the day after apparently adequate or even prolonged nighttime sleep. EDS can be considered as a broad condition encompassing several sleep disorders where increased sleep is a symptom, or as a symptom of another underlying disorder like narcolepsy, circadian rhythm sleep disorder, sleep apnea or idiopathic hypersomnia.

Introduction

EDS can have a significant impact on a person's quality of life, affecting daily functioning, productivity, and even personal relationships. It is important to identify the underlying cause of EDS to ensure proper treatment and management of the condition.

Common Causes of Excessive Daytime Sleepiness

Several factors and conditions can contribute to EDS. Some of the most common causes include:

• Narcolepsy: A chronic neurological disorder that impairs the brain's ability to regulate sleep-wake cycles, resulting in sudden episodes of sleep during the day.
• Circadian rhythm sleep disorders: A group of sleep disorders characterized by the disruption of the body's internal clock, leading to sleep disturbances and excessive sleepiness.
• Sleep apnea: A potentially serious sleep disorder in which breathing is repeatedly interrupted during sleep, leading to fragmented sleep and daytime sleepiness.
• Idiopathic hypersomnia: A sleep disorder characterized by excessive sleepiness despite adequate or prolonged nighttime sleep, with no known cause.
• Insufficient sleep: Poor sleep habits or inadequate sleep can also contribute to EDS.
• Medications: Certain medications, such as sedatives, antihistamines, and some antidepressants, can cause excessive sleepiness.
• Substance use: Alcohol and other substances can negatively impact sleep quality, leading to daytime sleepiness.
• Other medical conditions: Conditions such as hypothyroidism, chronic fatigue syndrome, and depression can also cause EDS.

Diagnosis of Excessive Daytime Sleepiness

To diagnose the cause of EDS, healthcare professionals typically conduct a thorough medical history and physical examination. They may also use tools such as:

• Sleep diary: A record of sleep patterns and habits for a period of time, usually two weeks.
• Epworth Sleepiness Scale: A questionnaire used to evaluate the severity of daytime sleepiness.
• Polysomnography: An overnight sleep study used to monitor various physiological parameters during sleep, including brain activity, eye movement, muscle activity, and breathing.
• Multiple sleep latency test (MSLT): A test that measures how quickly a person falls asleep during the day at scheduled intervals.

Treatment and Management of Excessive Daytime Sleepiness

Treatment and management strategies for EDS depend on the underlying cause. Some common approaches include:

• Sleep hygiene: Improving sleep habits, such as maintaining a consistent sleep schedule, creating a sleep-friendly environment, and avoiding stimulating activities before bedtime.
• Medications: Stimulant medications, such as modafinil or armodafinil, may be prescribed to help manage daytime sleepiness in cases of narcolepsy or idiopathic hypersomnia.
• Continuous positive airway pressure (CPAP): A common treatment for sleep apnea that involves using a device to deliver a constant flow of air pressure to keep the airways open during sleep.
• Behavioral therapy: Cognitive-behavioral therapy (CBT) can help address sleep disorders and improve sleep quality.
• Light therapy: Exposure to bright light at specific times of day can help regulate the body's internal clock in cases of circadian rhythm sleep disorders.

See Also

• Insomnia
• Restless Legs Syndrome
• Sleep deprivation
• Sleep disorders

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