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As per Ayurveda, the clinical presentations of sleep disorders may be broadly classified into two types.

As per Ayurveda, the clinical presentations of sleep disorders may be broadly classified into two types.

    

    

a)Excessive sleep (ati nidra)

'''a)Excessive sleep (ati nidra)

b)Loss of sleep/insomnia (anidra)

b)Loss of sleep/insomnia (anidra)'''

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===Causes of excessive sleep===

===Causes of excessive sleep===

Excess consumption of fats in the diet causes excess accumulation of fat ([[meda]]) and [[kapha dosha]]. This leads to obstruction in body channels, heaviness in the body and lethargy.This causes excessive sleep or hypersomnolence. [A. S. Sutra Sthana 9/30-33]

Excess consumption of fats in the diet causes excess accumulation of fat ([[meda]]) and [[kapha dosha]]. This leads to obstruction in body channels, heaviness in the body and lethargy.This causes excessive sleep or hypersomnolence. [A. S. Sutra Sthana 9/30-33]

Narcolepsy is a chronic neurological disorder that affects the brain’s ability to control sleep-wake cycles. People with narcolepsy have excessive, uncontrollable daytime sleepiness. They may also suddenly fall asleep at any time, during any kind of activity. The exact cause of narcolepsy is unknown in contemporary sciences. People with type 1 narcolepsy have low levels of the chemical hypocretin, which is an important neurochemical that regulates wakefulness and REM sleep. The relation between high-fat diet and narcolepsy needs further research.  

Narcolepsy is a chronic neurological disorder that affects the brain’s ability to control sleep-wake cycles. People with narcolepsy have excessive, uncontrollable daytime sleepiness. They may also suddenly fall asleep at any time, during any kind of activity. The exact cause of narcolepsy is unknown in contemporary sciences. People with type 1 narcolepsy have low levels of the chemical hypocretin, which is an important neurochemical that regulates wakefulness and REM sleep.The relation between high-fat diet and narcolepsy needs further research.  

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=== Causes of insomnia ===

=== Causes of insomnia ===

*[[Vata dosha]] predominant diseases, [[vata dosha]] dominance in basic body constitution ([[prakriti]]), aggravation of [[vata]] / [[vata]] along with [[pitta]] in the body due to any cause[Cha.Sa.[[Sutra Sthana]]21/55-57], [A. S. Sutra Sthana 9/34-36]

*[[Vata dosha]] predominant diseases, [[vata dosha]] dominance in basic body constitution ([[prakriti]]), aggravation of [[vata]] / [[vata]] along with [[pitta]] in the body due to any cause[Cha.Sa.[[Sutra Sthana]]21/55-57], [A. S. Sutra Sthana 9/34-36]

Research shows an increased prevalence of insomnia in women and older adults. In women, insomnia is more prevalent during menarche and menopause. Comorbid medical disorders,  psychiatric disorders, and night duties or rotating shifts are significant risks for insomnia.

Research shows an increased prevalence of insomnia in women and older adults. In women, insomnia is more prevalent during menarche and menopause.Comorbid medical disorders,  psychiatric disorders, and night duties or rotating shifts are significant risks for insomnia.

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The persons with insomnia can develop the conditions causing hypoxemia and dyspnoea, gastroesophageal reflux disease, pain conditions, and neurodegenerative diseases.  Among the primary sleep disorders, restless legs syndrome (RLS), periodic limb movement disorders (PLMD), and sleep-related breathing disorders (snoring, dyspnoea, sleep apnoea) often present with an insomnia symptom.  

The persons with insomnia can develop the conditions causing hypoxemia and dyspnoea, gastroesophageal reflux disease, pain conditions, and neurodegenerative diseases.  Among the primary sleep disorders, restless legs syndrome (RLS), periodic limb movement disorders (PLMD), and sleep-related breathing disorders (snoring, dyspnoea, sleep apnoea) often present with an insomnia symptom.  

Research shows a relationship between inadequate sleep and medical conditions like hypertension,  obesity and type-2 diabetes, cardiovascular disease and arrhythmias,   mood disorders, neurodegeneration and dementia,and impaired immune functioning.  

Research shows a relationship between inadequate sleep and medical conditions like hypertension,  obesity and type-2 diabetes, cardiovascular disease and arrhythmias,mood disorders,neurodegeneration and dementia,and impaired immune functioning.

 

== Untimely sleep (akala nidra) ==

== Untimely sleep (akala nidra) ==

Excess sleep during daytime is contraindicated in a healthy person. It provokes three [[dosha]] and can cause many ailments such as cough, respiratory discomforts, rhinitis, heaviness of head, body pain, anorexia, fever, impaired digestive power etc. [Su.Sa. Sharira Sthana 4/38]

Excess sleep during daytime is contraindicated in a healthy person. It provokes three [[dosha]] and can cause many ailments such as cough, respiratory discomforts, rhinitis, heaviness of head, body pain, anorexia, fever, impaired digestive power etc. [Su.Sa. Sharira Sthana 4/38]