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Narcolepsy (Uncontrollable daytime sleepiness)

Narcolepsy (Uncontrollable daytime sleepiness)

Also known as Gelineau's Syndrome, Hypnolepsy, Narcoleptic Syndrome, and Paroxysmal Sleep

Overview

Narcolepsy is a rare neurological disorder that causes a sudden attack of sleep. It affects your brain’s ability to wake and fall asleep at inappropriate times. People with narcolepsy often find it difficult to stay awake during the day, causing excessive daytime sleepiness. 


The exact cause of narcolepsy is unknown. However defienyOther symptoms may include frequent uncontrollable sleep attacks, sudden and temporary loss of muscle tone (cataplexy), vivid dream-like images (hallucination), and temporary inability to move or speak while falling asleep (sleep paralysis). It is difficult to perform daily routine work with narcolepsy.


Narcolepsy can be diagnosed and confirmed by the polysomnogram (PSG) and the multiple sleep latency tests (MSLT). However, a combination of lifestyle approaches and medicine can help you to live better with narcolepsy. 

Key Facts

Usually seen in
  • Individuals between 10 to 50 years of age
Gender affected
  • Both men and women
Body part(s) involved
  • Brain
Prevalence
  • Global: 1 in 2,000 (2017)

Mimicking Conditions
  • Obstructive sleep apnea (OSA)
  • Sleep apnea
  • Depression
  • Restless legs syndrome
  • Post-traumatic stress disorder (PTSD)
  • Anxiety disorder
  • Alcoholism
  • Hyperthyroidism
  • Syncope
  • Idiopathic hypersomnia
  • Chronic fatigue syndrome
  • Menstrually associated hypersomnia
Necessary health tests/imaging
Treatment
Specialists to consult
  • General physician
  • Sleep specialist 
  • Neurologist
  • Psychiatrist
  • Psychologist

Symptoms of Narcolepsy 


There are 5 signs and symptoms of narcolepsy, often represented by the acronym CHESS (cataplexy, hallucinations- usually visual, excessive daytime sleepiness, sleep paralysis, and sleep disruption). While all patients with narcolepsy may not experience all 5 symptoms except excessive daytime sleepiness (EDS). Symptoms of narcolepsy may develop suddenly over the course of a few weeks, or slowly over a number of years that may include:

1. Cataplexy

Cataplexy is sudden, temporary muscle weakness or loss of muscle tone. It can cause problems ranging from drooping eyelids to total body collapse, depending on the muscles involved. It also includes symptoms like:

  • Jaw-dropping

  • Head slumping down

  • Legs collapsing uncontrollably

  • Slurred speech

Note: These symptoms are often triggered by strong emotions such as fear, laughter, excitement, or anger. After the onset of EDS, symptoms of cataplexy may appear for weeks or even for years.

2. Hallucinations

When going to sleep or waking up, a person with narcolepsy may see or hear things that are not real. These delusional experiences are often vivid and frightening. If these delusions happen as you’re falling asleep are called hypnagogic hallucinations. If this happens when you’re waking up, then it is called hypnopompic hallucination.

3. Excessive daytime sleepiness (EDS)

Most patients with narcolepsy have this symptom. EDS would interfere with everyday activities, even if you get enough sleep at night. The lack of energy, and concentration, memory lapses, and feeling depressed and exhausted makes it very difficult to perform daily activities.

4. Sleep attacks

In general, people with narcolepsy will experience sudden intervals of falling asleep, without warning. They may happen at any time. The length of these sleep attacks varies from person to person. It can last from seconds to several minutes. These sleep attacks may happen several times a day if narcolepsy is not well controlled or treated.

5. Sleep paralysis

People with narcolepsy may experience episodes of sleep paralysis. Which means a temporary inability to move or speak while falling asleep or waking up. These episodes may last a few seconds to several minutes. Being unable to move can be frightening, although sleep paralysis does not cause any harm.

Other symptoms

Narcolepsy can also cause a number of other symptoms that include:

  • Memory problems

  • Depression

  • Headache

  • Automatic behavior- performing any task and suddenly falling asleep without consciously realizing they’re doing it.

Over 50% of narcolepsy cases remain undiagnosed because people feel embarrassed by the experience. Do not hesitate to take expert advice if you are facing any of the above-mentioned symptoms.


Types Of Narcolepsy


Narcolepsy can be classified into the following:

Type 1: Narcolepsy with cataplexy

This type comes without warning. It is characterized by a loss of muscle tone that causes weakness and makes you unable to control your muscles (cataplexy). People with this condition have high levels of hypocretin (and also muscle weakness triggered by emotions

Type 2: Narcolepsy without cataplexy

Individuals with type 2 narcolepsy have excessive sleepiness during the daytime but do not have cataplexy (sudden muscle weakness). They usually have fewer chronic symptoms and normal brain hormone hypocretin levels.

Secondary narcolepsy

This type is the rarest one. It may result from an injury to a deep part of the brain called the hypothalamus that regulates sleep. It may also be caused by a brain tumor or brain inflammation called encephalitis. Apart from narcolepsy’s usual symptoms, individuals may also have severe neurological problems and long periods of sleep (more than 10 hours) each night.

Do you feel drowsy mostly in the daytime? Do you feel any changes in your sleeping pattern? Read and find out the common cause of excessive sleep.


Causes Of Narcolepsy


The exact cause of narcolepsy is unknown. However, many people with narcolepsy have less amount of a brain chemical known as hypocretin (orexin). It helps in regulating your sleep-wake cycles. Some experts believe that the deficiency of hypocretin levels and an immune system that attacks healthy cells (i.e an autoimmune issue), contributes to narcolepsy. But that is not the cause in all cases.


Causes of secondary narcolepsy 

Sometimes narcolepsy can occur as a result of underlying conditions that alter the production of hypocretin levels in the brain. For example, narcolepsy can develop after the following:

  • Head injury: Including trauma to the cranium and intracranial structures (Brain, Cranial nerves, meninges, and other structures)

  • Hypothalamic lesions: Abnormal growth in the hypothalamus gland, which is located in the brain that helps to maintain the stability and balance in our bodies.

  • Brain tumor: Narcolepsy due to brain tumors is usually seen in kids.

  • Encephalitis: Inflammation of the brain, mostly due to infection.

  • Multiple sclerosis: It is an autoimmune disease that damages the central nervous system.

  • Demyelinating disorders: A neurological condition that causes damage to the protective covering (myelin sheath) that surrounds nerve fibers in the brain, eyes (optic nerves), and the spinal cord.

  • Encephalomyelitis: It refers to the inflammation in the brain and spinal cord that damages (myelin sheath )the protective covering of nerve fibers.

  • Inherited disorders: Disorders like Niemann–Pick disease type C can also cause narcolepsy.

     

    Did you know? 

    Many patients with narcolepsy also have fragmented sleep, other sleep disorders, and obesity, probably as a consequence of orexin deficiency. Depression, anxiety, and other psychiatric problems are also common in these patients.

Risk Factors For Narcolepsy


Certain factors can increase the chance of narcolepsy such as the following: 


  • Family history: Your risk of getting narcolepsy is 20 to 40 times higher if you have a family history of it. However, narcolepsy is not a genetic condition.

  • Previous brain trauma: In rare cases, narcolepsy can occur after severe trauma to areas of the brain that regulates sleep-wake cycles. In a few cases, it is reported that brain tumors may also cause narcolepsy.

  • Possible triggers: Recent studies found that Infectious diseases such as streptococcal infection or HIN1 infection, as well as vaccination, may trigger an autoimmune response with selective destruction of the hypocretin that can lead to narcolepsy.

  • Environmental toxins: Studies have shown that exposure to insecticides, heavy metals, and weed killers may cause narcolepsy.

    Did you know?

    Narcolepsy can occur as early as five years of age. Type 1 (narcolepsy with cataplexy) affects 50 per 100,000 people. It usually begins in the teens and early twenties, but occasionally occurs as early as five years of age or after 40 years.

Diagnosis Of Narcolepsy


Diagnosis of narcolepsy can be quite tricky as it mimics other health conditions like depression, encephalitis, etc. Daytime sleepiness can also be a common side effect of certain medicines. TDiagnosis of narcolepsy includes:

1. History taking

The diagnosis of narcolepsy includes taking an extensive history of the patient that includes questions like:

  • Duration of sleep during the nighttime

  • Frequency of having difficulty sleeping

  • Daytime napping 

  • Any stressful event in the recent past

  • Medical condition if any

2. Blood tests

These tests are recommended to rule out any underlying health problems. They include:

3. Imaging tests

This helps to determine if there are any problems with the brain or nerves that may be responsible for problems with sleep. Imaging tests that are generally advised include: 

4. Sleep record tests (sleep log)

Your doctor will ask you to keep a journal of your sleep pattern for about a week. In that, you need to record the time at which you fall asleep, and the duration of sleep during the daytime as well as nighttime. 

5. Wrist actigraphy

It is a device used to detect movements during sleep. An actigraph is worn on the wrist during sleeping to keep track of your sleeping pattern. It also records body movements and can help distinguish wakefulness from sleep.

6. Polysomnography

The polysomnography (PSG) test requires you to spend a night in a sleep center or medical facility. It is used to record a set of parameters like brain waves, breathing, oxygen levels, heart rate, and eye and leg movements during sleep. This test reveals how quickly you fall asleep, how often you wake up during the night, and how often your sleep is disturbed (a common finding in people with narcolepsy). This is one of the essential tests to confirm narcolepsy.

7. Multiple sleep latency test (MSLT)

MSLT measures how quickly and easily it takes you to fall asleep during the day. You may have this test after polysomnography. You’ll need to take several naps throughout the day, and an expert will analyze how quickly you enter into a sleep cycle. 

8. Measuring hypocretin levels

Experts believe that in many cases, narcolepsy is linked to a deficiency of hypocretin, also known as orexin, which regulates sleep-wake cycles. Measuring your level of orexin can be useful in diagnosing narcolepsy. A sample of cerebrospinal fluid (CSF) is removed using a needle during a procedure called a lumbar puncture and then tested for hypocretin levels.


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Celebs affected

Nastassja Kinski
She is a German-born American-based actress who has appeared in more than 60 films. In 2001, she talked about her medical condition with narcolepsy. However, she manages to live with it and simultaneously gives hit films.

Prevention Of Narcolepsy


Since the actual cause of narcolepsy is unknown, it is difficult to prevent it. However, here are a few effective habits that you can adopt to ensure that you get a good night’s sleep.


  • Avoid daytime naps

  • Fix your time for sleep. This includes sleeping and waking up at the same time every day. It keeps your biological clock in order.

  • Practicing a relaxing pre-bedtime ritual such as taking bath, reading, or listening to soft music helps to reduce your stress and improve sleep at night.

  • Sleep in a completely dark room as it will help in secreting melatonin hormone (it regulates the sleep-wake cycle) and promotes sound sleep.

  • Avoid using cell phones and watching TV prior to sleep time. The light from the screen interferes with the release of the melatonin hormone.

  • Avoid caffeine, nicotine, and alcohol at night or late evening as they can make you feel active and disturb your sleep cycle.

  • Avoid large meals and beverages before bedtime as it will stop your urge of using the washroom at night during sleep. 

  • Avoid a sedentary lifestyle and stay active during the daytime, as it can improve your sleep cycle.


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Specialist To Visit


Your general physician is the first doctor you may need to consult, other specialists who can help in the diagnosis and treatment of narcolepsy and its related health complications are:

  • General physician

  • Sleep specialist 

  • Neurologist

  • Psychiatrist

  • Psychologist

A sleep specialist is a doctor who diagnoses and treats sleep disorders. A neurologist treats disorders that affect the brain, spinal cord, and nerves. A psychiatrist is a doctor who is trained to treat people with mental illness. A psychologist is a person who specializes in the study of mind and behavior.

There is no shame in asking for help. Individuals with narcolepsy are too conscious to talk about their symptoms. Take advice from an experienced medical professional to understand your condition and manage it better.

Treatment Of Narcolepsy


Narcolepsy is a chronic neurological condition. Although there is no permanent cure for it, following treatment options can help you manage your symptoms. The treatment includes;

Medications

There are several classes of medications used to treat narcolepsy, such as

  • Stimulants: These medicines stimulate your central nervous system, which can help keep you awake during the day. Drugs include:

  • Antidepressants: Tricyclic antidepressants and Selective serotonin and noradrenergic reuptake inhibitors are two classes of antidepressant drugs that have proven effective in controlling symptoms of narcolepsy in many individuals. Drugs include:


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Newer advancements

These are drugs that are still in development, but have shown some good results in animal models. 

  • Orexin-based therapy: It is used to treat narcolepsy type 1 due to orexin deficiency. ORX-A replacements are given intravenously or intranasal (in monkeys) to reduce the effects of sleep deprivation on cognitive performances.
  • Immune-based therapy: Immunotherapy is considered a promising future therapeutic option. Drugs like natalizumab, fingolimod, abatacept, monoclonal antibodies, can be used to treat narcolepsy.

Home-Care For Narcolepsy


Medications should accompany various lifestyle changes. Consider the strategies mentioned below to help manage the condition better:

  • Take short naps: You can take frequent, brief naps, regularly scheduled naps at times when you tend to feel sleepiest.
  • Follow a strict bedtime routine: Going to bed and waking up at almost the same time every day can help people sleep better. 
  • Keep your bedroom only for sleep: Try to use your bed only for sleep, do not use cell phones, or laptops in bed as your brain becomes habitual and you don't feel asleep when you see your bed. 
  • Avoid caffeine before bed: Avoid using beverages such as colas, coffee, teas, energy drinks, and chocolate shakes for several hours before bedtime.
  • Avoid alcohol and smoking: Especially in the late evening as it can act as It prevents people from getting a deep sleep.
  • Stay active: Exercise every day for at least 20 minutes and do not exercise before bedtime.
  • Don’t eat heavy meals close to bedtime:It can make you less comfortable while sleeping at night.
  • Relax before bedtime: You can take a warm bath, meditate, read or listen to soft music. 

Did you know?

Exposure to indoor air pollutants can affect your sleep. Research shows that pollution in the sleep microenvironment can affect the quality of sleep. Explore our extensive range of air purifiers to have a dust free environment that can help you sleep better.

Complications of Narcolepsy

 

Narcolepsy is associated with long-term effects on health and well-being. The immediate effects include poor performance, daytime sleepiness, inability to perform daily household tasks, and fatigue. The long-term complications include:

1. Accidents

Fatal road accidents are caused due to excessive sleepiness and cataplexy.

2. Heart disease

Narcolepsy has also been linked to higher rates of hypertension. Moreover, excessive sleepiness can affect inflammatory markers, which in turn can increase the risk of heart disease.

3. Obesity

People with narcolepsy usually become overweight because of lower activity levels and orexin deficiency. In the long term, their slower metabolism can cause obesity.

4. Stress & anxiety

Narcolepsy may lead to mental disorders such as stress and anxiety. However, depression is also common in people with narcolepsy. Uncontrolled sleep attacks can impair decision-making, damage relationships, and decline the overall quality of life.

5. Poor performance

The ability to concentrate is essential to learning and academic achievement. However, sleep attacks and other symptoms of narcolepsy can reduce attention and focus leading to poor performance.

Did you know?
COVID-19 infections can be linked to narcolepsy. Studies suggest that SARS-CoV2 infection is more likely to affect susceptible individuals with Parkinson’s disease, multiple sclerosis, and narcolepsy.
Did you know?

Alternative Therapies Of Narcolepsy


Narcolepsy needs both medical and lifestyle management. Along with those there are a few alternative therapies that may help you to manage the symptoms of narcolepsy. They include:

1. MR therapy (meditation and relaxation)

One of the easy and effective remedies is meditation and relaxation therapy. MR therapy, especially mindfulness-based meditation helps ease psychological stress including anxiety, depression, and symptoms of narcolepsy. Steps for mindfulness meditation include:

  • Sit or lie in a comfortable position.
  • Focus on your natural breathing- inhale and exhale.
  • Allow your thoughts (positive or negative) to come and go without judgment.
  • Keep your body calm and relaxed.

2. Sleep-inducing teas 

In a few cases, people with narcolepsy have seen a disturbance in night sleep, or are unable to sleep at night. Teas like chamomile (babunah ke phul) tea, passion flower tea, red ginseng, peppermint (pudina) tea, and lavender tea can promote good sleep at night. 

3. Acupuncture and acupressure

These therapies are ancient healing arts based on components of traditional Chinese medicine. Acupressure helps to release tension in the muscles and pressure points and to encourage blood circulation by pressing certain areas of your body. In acupuncture therapy, thin needles are inserted into the body to ease the symptoms of narcolepsy including stress, and anxiety.

Living With Narcolepsy


Narcolepsy can take a toll on mental health, and with the embarrassment surrounding it individuals do not really open up and tell their symptoms. Social life can be impacted when sleepiness and other symptoms interfere with conversations, social events, and relationships. 


If you notice your loved ones having bouts of sleep try talking to them or taking them to a doctor for the correct diagnosis and treatment.

Tips for caregivers:

These are certain simple ways you can assist a loved one suffering from narcolepsy:


  • Learn everything you can about narcolepsy.

  • Inquire if they need assistance and provide it, but don't hover.

  • Offer to assist in the organizing of duties such as bill payment and domestic chores.

  • Stick sticky notes around the house and keep a calendar of essential appointments.

  • Deliver a tasty meal every now and then, along with some nutritious snacks.

  • Enjoy a movie together at home or do something that will offer joy to their and your lives.

  • Give your loved one a pat on the back, even for minor accomplishments.

 

Remember to make mindcare your priority with our range of mind care products to help you stay calm and relaxed.

Frequently Asked Questions

References

  1. About Narcolepsy, Updated on: 10th of December 2014.External Link
  2. Barateau L, Lopez R, Dauvilliers Y. Treatment Options for Narcolepsy. CNS Drugs.Updated on: 30th of May 2016.(5):369-79.External Link
  3. Symptoms and Treatment of Narcolepsy, National Institute of Neurological Disorders and Stroke, Updated on:25th of July 2022.External Link
  4. Jennifer M. Slowik; Jacob F. Collen; Allison G. Yow. Causes and Diagnosing of narcolepsy, Updated 2022 June 21. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2022 June.External Link
  5. Vignatelli L, D'Alessandro R, Candelise L. Antidepressant drugs for narcolepsy. Cochrane Database Syst Rev. 2008 Jan 23;(1): CD003724.External Link
  6. Complications. Narcolepsy. The Division of Sleep Medicine at Harvard Medical School. Updated on:21st of February 2018External Link
  7. Boor E, Spilak M, Laverge J, Novoselac A. Human exposure to indoor air pollutants in sleep microenvironments: A literature review, Updated August 2017.External Link
  8. Narcolepsy. American sleep association. External Link
  9. Treatment of narcolepsy, Xyrem. U.S. Food And Drug Administration. Updated on 25th January 2017.External Link
  10. Chabas D,Taheri S, Renier C, Mignot E. The Genetics Of Narcolepsy. Updated on: 17th June 2003.External Link
  11. Liu J, Wu T, Liu Q, Wu S, Chen JC. Air pollution exposure and adverse sleep health across the life course: A systematic review. Environ Pollut. 2020 Jul;262:114263.External Link
  12. Martin JL, Hakim AD. Wrist actigraphy. Chest. 2011 Jun;139(6):1514-1527.External Link
  13. Barateau L, Dauvilliers Y. Recent advances in treatment for narcolepsy. Ther Adv Neurol Disord. 2019 Sep 26;12:1756286419875622.External Link
  14. Acknowledgment. Narcolepsy. NORD. Jun 2017.External Link
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