Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Disturbances in Heart Rhythm01:29

Disturbances in Heart Rhythm

2.7K
Arrhythmia or dysrhythmia refers to an abnormal heart rhythm caused by a defect in the heart's conduction system. It can cause the heart to beat irregularly, too quickly, or too slowly, leading to symptoms like chest pain, shortness of breath, and fainting. Factors such as stress, caffeine, alcohol, nicotine, cocaine, certain drugs, congenital defects, diseases, and electrolyte abnormalities can trigger arrhythmias.
Arrhythmias are categorized by their speed, rhythm, and origin. A slow heart...
2.7K
Insufficient Sleep and Sleep Deprivation01:13

Insufficient Sleep and Sleep Deprivation

862
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...
862
Pulse rhythm01:30

Pulse rhythm

1.4K
Pulse rhythm refers to the pattern of pulsations within specific intervals, offering valuable insights into the regularity or irregularity of the heart's beats as observed through the pattern of pulsation within specific intervals. A regular pulse exhibits a consistent heart rate with uniform waveforms and pulsation force, variations of which can be classified as normal, weak, or bounding.
Conversely, an irregular pulse pattern is termed dysrhythmia, stemming from disruptions in cardiac...
1.4K
Stages of Sleep01:22

Stages of Sleep

1.4K
Sleep progresses through distinct stages, each characterized by specific brain wave patterns and physiological responses ranging from wakefulness to stages of non-rapid eye movement, known as non-REM, to rapid eye movement, referred to as REM. Understanding these stages helps in recognizing how sleep supports various bodily and cognitive functions.
Before sleep begins, in wakefulness, the brain exhibits primarily beta waves, which are high in frequency and low in amplitude, indicating alertness...
1.4K
ECG Interpretation of Rhythms01:24

ECG Interpretation of Rhythms

13.6K
An electrocardiogram (ECG)graphically represents the heart's electrical activity on ECG paper or a monitor.
Components of the Electrocardiogram
The primary components of a normal ECG waveform in Normal sinus rhythm(NSR) include the P wave, PR interval, QRS complex, ST segment, T wave, and occasionally a U wave.
ECG waveforms are divided by vertical and horizontal lines at standard intervals.
The horizontal axis measures time and rate, and the vertical axis measures amplitude or voltage....
13.6K
Anatomy of the Heart01:27

Anatomy of the Heart

119.6K
The human heart is made up of three layers of tissue that are surrounded by the pericardium, a membrane that protects and confines the heart. The outermost layer, closest to the pericardium, is the epicardium. The pericardial cavity separates the pericardium from the epicardium. Beneath the epicardium is the myocardium, the middle layer, and the endocardium, the innermost layer. There are four chambers of the heart: the right atrium, the right ventricle, the left atrium, and the left ventricle.
119.6K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Highly sensitive detection of species-specific malaria antigens using a cellulose nanobead-based lateral flow immunoassay.

Mikrochimica acta·2026
Same author

Quantitative analysis of bovine angiogenin in milk using a microliter-volume protein microarray.

Talanta·2026
Same author

Personal PM<sub>2.5</sub> Exposure Using Time-Weighted Average Scenarios in the Seoul Metropolitan Area.

Toxics·2026
Same author

Long-acting injectable vs. oral antipsychotics during electroconvulsive therapy in psychosis: a retrospective comparative study.

International clinical psychopharmacology·2026
Same author

Chemical Characteristics and Source Identification of PM<sub>2.5</sub> in Industrial Complexes, Korea.

Toxics·2026
Same author

Unobtrusive sleep posture estimation using pressure sensor in home sleep.

Computers in biology and medicine·2026
Same journal

The SGLT2i "canagliflozin" and the DPP-4i "sitagliptin" mitigate hypertensive nephropathy in adult male rats by modulating the Ang II/RAGE/Nox4/NLRP3 cascade.

Frontiers in physiology·2026
Same journal

Integrated anthropometric correlates of planned change-of-direction performance (T-test) in male badminton players: a partial least squares regression study.

Frontiers in physiology·2026
Same journal

From biaxial tests to cardiac digital twins: a morphomechanics agenda for passive myocardium.

Frontiers in physiology·2026
Same journal

A gradient-based optimization model for predicting decompression sickness risk.

Frontiers in physiology·2026
Same journal

What role does the Notch signaling pathway play in exercise-related metabolic and neurological adaptations? A molecular-to-systems perspective.

Frontiers in physiology·2026
Same journal

Variation in skin barrier function throughout smoltification in Atlantic salmon (<i>Salmo salar</i>).

Frontiers in physiology·2026
See all related articles

Related Experiment Video

Updated: Jan 27, 2026

Assaying Locomotor Activity to Study Circadian Rhythms and Sleep Parameters in Drosophila
18:08

Assaying Locomotor Activity to Study Circadian Rhythms and Sleep Parameters in Drosophila

Published on: September 28, 2010

48.2K

Human Heart Rhythms Synchronize While Co-sleeping.

Heenam Yoon1, Sang Ho Choi1, Sang Kyong Kim1

  • 1Interdisciplinary Program in Bioengineering, Seoul National University, Seoul, South Korea.

Frontiers in Physiology
|March 28, 2019
PubMed
Summary
This summary is machine-generated.

Human physiological systems interact between individuals, particularly during co-sleeping. Heart rhythms synchronize bidirectionally, potentially due to subtle vibrations transmitted between connected individuals.

Keywords:
causal relationco-sleepingheart rhythmnon-linear dynamicsphase synchronization

More Related Videos

Uncovering Beat Deafness: Detecting Rhythm Disorders with Synchronized Finger Tapping and Perceptual Timing Tasks
09:04

Uncovering Beat Deafness: Detecting Rhythm Disorders with Synchronized Finger Tapping and Perceptual Timing Tasks

Published on: March 16, 2015

13.3K
Polygraphic Recording Procedure for Measuring Sleep in Mice
08:45

Polygraphic Recording Procedure for Measuring Sleep in Mice

Published on: January 25, 2016

25.2K

Related Experiment Videos

Last Updated: Jan 27, 2026

Assaying Locomotor Activity to Study Circadian Rhythms and Sleep Parameters in Drosophila
18:08

Assaying Locomotor Activity to Study Circadian Rhythms and Sleep Parameters in Drosophila

Published on: September 28, 2010

48.2K
Uncovering Beat Deafness: Detecting Rhythm Disorders with Synchronized Finger Tapping and Perceptual Timing Tasks
09:04

Uncovering Beat Deafness: Detecting Rhythm Disorders with Synchronized Finger Tapping and Perceptual Timing Tasks

Published on: March 16, 2015

13.3K
Polygraphic Recording Procedure for Measuring Sleep in Mice
08:45

Polygraphic Recording Procedure for Measuring Sleep in Mice

Published on: January 25, 2016

25.2K

Area of Science:

  • Physiology
  • Human Interaction
  • Biophysics

Background:

  • Human physiological systems maintain internal stability through homeostatic regulation.
  • Interactions between physiological systems of different individuals are not well-understood.
  • Understanding inter-individual physiological interactions is crucial for social behavior research.

Purpose of the Study:

  • To investigate potential interactions between the physiological systems of independent individuals.
  • To explore if physiological systems synchronize when individuals are physically connected.

Main Methods:

  • Studied heart rhythms of individuals co-sleeping in close proximity.
  • Utilized controlled experimental conditions with a mechanical bed connection.
  • Analyzed heart rate data for phase synchronization and causal relationships.

Main Results:

  • Co-sleeping individuals exhibited synchronized heart rhythms in relative phase for extended durations.
  • A bidirectional causal relationship was observed between the heart rhythms of co-sleepers.
  • Weak cardiac vibrations transmitted via the bed connection may explain the observed synchronization.

Conclusions:

  • Physiological systems of independent individuals can interact and synchronize.
  • Co-sleeping facilitates inter-individual physiological coupling, possibly mediated by mechanical vibrations.
  • This research provides a basis for understanding physiological synchrony in social contexts and relationships.