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Management of Insomnia01:19

Management of Insomnia

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The sleep cycle, an integral part of human health, consists of several stages with distinct characteristics and functions. It begins with a transition from wakefulness to sleep, known as the light sleep phase, followed by the restorative deep sleep phase, essential for physical recovery and growth. The cycle concludes with the Rapid Eye Movement (REM) phase, characterized by high brain activity and vivid dreaming. Insomnia, a prevalent sleep disorder, involves difficulty falling asleep, staying...
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Sedatives and hypnotics encompass a wide range of substances, each with its unique mechanism of action, uses, and potential adverse effects.
Melatonin congeners like ramelteon (Rozerem) and tasimelteon (Hetlioz) selectively bind to melatonin receptors (MT1 and MT2) and thus mimic the actions of melatonin, a hormone that regulates sleep-wake cycles. Tasimelteon is primarily used for non-24-hour sleep-wake disorder, common in blind patients. They are also used to treat conditions like insomnia...
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Insomnia01:27

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Insomnia is a prevalent sleep disorder characterized by difficulty falling asleep, frequent awakenings during the night, and waking up too early without being able to return to sleep. People with insomnia often experience these disruptions at least three nights a week for at least one month. Chronic insomnia, which lasts for at least three months, can lead to increased anxiety, which in turn can worsen sleep difficulties, creating a cycle of sleeplessness and stress.
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Sleep-Wake Cycles01:24

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Sleep is an essential physiological process vital to maintaining overall well-being. The reticular activating system (RAS), a network of neurons in the brainstem, regulates wakefulness and sleep. While it may seem passive, sleep consists of distinct cycles, each with its unique characteristics and functions. Two key sleep phases are non-rapid eye movement (NREM) and  rapid eye movement (REM).
NREM Sleep
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Somnambulism, commonly known as sleepwalking, involves individuals engaging in activities ranging from simple walking to more complex behaviors such as driving. Sleepwalking typically occurs during the slow-wave sleep stages 3 and 4 early in the night when the person is not dreaming, contradicting the myth that sleepwalkers are acting out their dreams.
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Insufficient Sleep and Sleep Deprivation01:13

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Insufficient sleep refers to not getting the recommended amount of sleep for optimal functioning, even if it's just slightly less than needed. Sleep insufficiency may occur due to lifestyle choices, such as staying up late for social events or work, resulting in routinely getting less sleep than required. For example, consistently sleeping 6 hours when the body needs 7-9 hours can lead to cumulative effects on health and well-being.
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Sleep Immune Cross Talk and Insomnia.

Marine Ambar Akkaoui1,2, Laura Palagini3,4, Pierre A Geoffroy5,6,7,8

  • 1Centre Psychiatrique d'Orientation et d'Accueil (CPOA), GHU Paris - Psychiatry & Neurosciences, Paris, France.

Advances in Experimental Medicine and Biology
|March 23, 2023
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Summary
This summary is machine-generated.

Sleep deprivation and insomnia disrupt immune function, increasing inflammation and infection risk. Treatments like CBT-I and melatonin may restore immune balance.

Keywords:
ImmunityInflammationInsomniaSleep deprivationSleep disordersSleep immune cross talkSleep loss

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Area of Science:

  • Explores the intricate bidirectional relationship between sleep and the immune system.
  • Focuses on immune system alterations specifically within the context of insomnia disorder.

Background:

  • During normal sleep, pro-inflammatory cytokines (IL-1, IL-6, TNF-α) and anti-inflammatory cytokines (IL-4, IL-10) decrease.
  • Immune cell activity, like Natural Killer (NK) cells, increases during sleep despite reduced blood presence.
  • Short sleep duration is linked to heightened inflammation and increased susceptibility to infections.

Approach:

  • Reviews existing literature on sleep-immunity interactions.
  • Examines immune changes observed in individuals diagnosed with insomnia disorder.
  • Considers the impact of insomnia treatments on immune dysregulation.

Key Points:

  • Insomnia disorder is associated with immune system deregulation, including elevated pro-inflammatory cytokines and reduced lymphocyte levels.
  • Cognitive Behavioral Therapy for Insomnia (CBT-I) shows potential for restoring sleep and reducing associated inflammation.
  • Melatonin supplementation may also help mitigate inflammation in patients with insomnia disorder.

Conclusions:

  • Sleep disturbances, particularly insomnia, significantly impact immune function, promoting a pro-inflammatory state.
  • Therapeutic interventions targeting insomnia may offer benefits for immune health.
  • Further research is crucial to elucidate the pathophysiology and clinical implications of immune changes in insomnia.