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Related Concept Videos

Assessment of the Cardiovascular System I: Subjective Data01:23

Assessment of the Cardiovascular System I: Subjective Data

A thorough health history and physical assessment are essential for identifying cardiovascular disease (CVD) symptoms and distinguishing them from other health issues.
Initial Enquiry
Ask the patient about their primary concern and thoroughly explore all reported symptoms.
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Insufficient Sleep and Sleep Deprivation01:13

Insufficient Sleep and Sleep Deprivation

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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Understanding Sleep01:11

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Sleep, an essential biological state, involves significant reductions in physical activity, sensory awareness, and interaction with the environment. This complex physiological process is primarily regulated by specific brain regions, notably the hypothalamus and pons, which govern the sleep-wake cycle or circadian rhythm.
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Sleep-Wake Cycles01:24

Sleep-Wake Cycles

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).
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Primary Motives: Sleep, Sex, and Pain Avoidance01:24

Primary Motives: Sleep, Sex, and Pain Avoidance

Primary motives such as sleep, sex, and pain avoidance are crucial drivers of behavior in humans and animals. These motives ensure survival, reproductive success, and overall well-being by prompting actions that meet essential bodily needs.
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Through-the-Wall Blood Sampling Method to Minimize Sleep Disruption in Clinical Settings
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Published on: June 13, 2025

Vascular endothelial function and self-reported sleep.

Muskaan Behl1, Donald Bliwise, Emir Veledar

  • 1Division of Cardiology (MB, EV, AQ), Sleep Program (DB), Emory University Predictive Health Institute (LC, JV, KB), Emory University School of Medicine, Atlanta, Georgia.

The American Journal of the Medical Sciences
|July 12, 2013
PubMed
Summary
This summary is machine-generated.

Subjective sleepiness and snoring are linked to impaired endothelial function, a key indicator of cardiovascular disease risk. Simple sleep questionnaires may reveal endothelial dysfunction in community populations.

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A Methodological Approach to Non-invasive Assessments of Vascular Function and Morphology
09:33

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Published on: February 7, 2015

Area of Science:

  • Cardiovascular Health
  • Sleep Science
  • Endocrinology

Background:

  • Previous research suggests a link between sleep apnea and endothelial dysfunction.
  • However, the association between subjective sleep quality and endothelial function remains unclear.
  • This study explores self-reported sleep characteristics and their relationship with brachial artery flow-mediated dilation (FMD).

Purpose of the Study:

  • To investigate the association between self-reported sleep characteristics and endothelial function (FMD).
  • To determine if subjective sleep reports can serve as indicators of endothelial dysfunction and cardiovascular disease risk.

Main Methods:

  • 684 community-dwelling adults (37-60 years) completed sleep questionnaires (Epworth Sleepiness Scale, Pittsburgh Sleep Quality Index).
  • Brachial artery flow-mediated dilation (FMD) was measured to assess endothelial function.
  • Multivariate analysis of covariance adjusted for cardiovascular risk factors (age, race, sex, smoking, hypertension, diabetes, BMI).

Main Results:

  • Higher Epworth Sleepiness Scale scores correlated with lower brachial artery FMD, even after risk factor adjustment (P=0.03).
  • Lower sleep quality (PSQI component 1) was associated with reduced FMD (P=0.038).
  • Participants reporting coughing or snoring during sleep exhibited lower FMD compared to those who did not (P=0.03 after adjustment).

Conclusions:

  • Subjective reports of sleepiness and snoring are significantly associated with endothelial function.
  • Simple self-reported sleep data may be valuable indicators of endothelial dysfunction.
  • These findings highlight the importance of sleep quality assessment for cardiovascular disease risk evaluation.