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Related Concept Videos

Substance Use Disorders Affecting Sleep01:24

Substance Use Disorders Affecting Sleep

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Substance use disorders involve a pattern of using drugs more extensively than intended and continuing use despite harmful consequences. This includes legal substances like alcohol and nicotine, as well as illegal drugs. These disorders often involve both physical and psychological dependence, reflecting compulsive use of substances that significantly alter thoughts, feelings, and behaviors, contributing to a major public health issue.
Understanding the concepts of physical dependence,...
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Insomnia01:27

Insomnia

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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.
Multiple factors contribute...
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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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Insufficient Sleep and Sleep Deprivation01:13

Insufficient Sleep and Sleep Deprivation

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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.
Sleep deprivation is a more severe form of sleep loss...
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CNS Depressants: Barbiturates and Benzodiazepines01:14

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CNS depressants include drugs from the category of barbiturates and benzodiazepines. They are valuable medications for managing anxiety disorders and insomnia. Barbiturates, once used to induce and maintain sleep, have been replaced mainly by benzodiazepines due to barbiturate's toxicity, tolerance, and overdose risks. They interact with GABAA receptors, leading to sedation at low doses and potentially coma and death at higher doses. Phenobarbital, a long-acting barbiturate, possesses...
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Sedatives and Hypnotics Drugs: Miscellaneous Agents01:17

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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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Meta-Analysis of the Effectiveness and Safety of Shugan Jieyu Capsules for the Treatment of Insomnia
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Causal relationships between substance use and insomnia.

Joëlle A Pasman1, Dirk J A Smit2, Lilian Kingma2

  • 1Behavioural Science Institute, Radboud University Nijmegen, the Netherlands.

Drug and Alcohol Dependence
|July 8, 2020
PubMed
Summary

Insomnia increases the risk of smoking, alcohol dependence, and cannabis initiation. Smoking initiation also increases insomnia risk, suggesting a potential vicious cycle. Further research into insomnia interventions for substance use is recommended.

Keywords:
InsomniaMendelian randomizationSleepSmokingSubstance use

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Area of Science:

  • Genetics
  • Psychiatry
  • Public Health

Background:

  • Poor sleep quality and insomnia are linked to tobacco, alcohol, and cannabis use.
  • The causal relationship between insomnia and substance use remains unclear.

Purpose of the Study:

  • To investigate the potential causal effects of insomnia on substance use.
  • To examine if substance use causally influences insomnia risk.

Main Methods:

  • Utilized Mendelian Randomization (MR) with genome-wide association study (GWAS) data.
  • Assessed bi-directional causal relationships between insomnia and various substance use phenotypes (smoking, alcohol, cannabis).
  • Employed multiple sensitivity analyses to ensure result robustness.

Main Results:

  • Strong evidence indicates insomnia liability causally affects smoking traits, alcohol dependence, and cannabis initiation.
  • Smoking initiation was found to causally increase insomnia risk.
  • No evidence suggested alcohol or cannabis use causally impacts insomnia.

Conclusions:

  • Unidirectional causal effects observed from insomnia to alcohol dependence and cannabis initiation.
  • Bidirectional causal effects were found between insomnia and smoking measures, suggesting a potential vicious cycle.
  • Interventions targeting insomnia may be beneficial for substance use treatment.