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

Circadian Rhythms and Gene Regulation02:19

Circadian Rhythms and Gene Regulation

4.6K
The biological clock is involved in many aspects of regulating complex physiology in all animals. It was in 1935 when German zoologists, Hans Kalmus and Erwin Bünning, discovered the existence of circadian rhythm in Drosophila melanogaster. However, the internal molecular mechanisms behind the circadian clock remained a mystery until 1984, when Jeffrey C. Hall, Michael Rosbash, and Michael W. Young discovered the expression of the Per gene oscillating over a 24-hour cycle. In subsequent...
4.6K
Biological Clocks and Seasonal Responses02:45

Biological Clocks and Seasonal Responses

41.8K
The circadian—or biological—clock is an intrinsic, timekeeping, molecular mechanism that allows plants to coordinate physiological activities over 24-hour cycles called circadian rhythms. Photoperiodism is a collective term for the biological responses of plants to variations in the relative lengths of dark and light periods. The period of light-exposure is called the photoperiod.
41.8K
Epigenetic Regulation01:37

Epigenetic Regulation

4.0K
Epigenetic changes alter the physical structure of the DNA without changing the genetic sequence and often regulate whether genes are turned on or off. This regulation ensures that each cell produces only proteins necessary for its function. For example, proteins that promote bone growth are not produced in muscle cells. Epigenetic mechanisms play an essential role in healthy development. Conversely, precisely regulated epigenetic mechanisms are disrupted in diseases like cancer.
X-chromosome...
4.0K

You might also read

Related Articles

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

Sort by
Same author

No evidence of neural feature-specific pre-activation during the prediction of an upcoming stimulus.

Nature communications·2026
Same author

One Health Investigation into Fatal Encephalitis Caused by Pigeon Paramyxovirus Type 1, France.

Emerging infectious diseases·2026
Same author

Demography and life histories across the Roman frontier in Germany 400-700 CE.

Nature·2026
Same author

Nuclear Myosin 1 links genomic architecture to adipose tissue remodeling, metabolic inflammation and obesity in mice.

Cell death & disease·2026
Same author

Immune Profiling Identifies High-Risk Neutrophil-Rich Subtype in Checkpoint Inhibitor Nephritis.

Kidney international reports·2026
Same author

Modulation of sensory attenuation by intensive meditation practice: an active inference perspective.

Neuroscience of consciousness·2026
Same journal

Higher plasma catecholamine concentrations in oral cancer patients and association with clinical and psychological characteristics.

Psychoneuroendocrinology·2026
Same journal

Corrigendum to "Cortisol stress reactivity and cumulative output associations with structural neural network architecture in adolescents" [Psychoneuroendocrinology 191 (2026) 107938].

Psychoneuroendocrinology·2026
Same journal

Salivary glucocorticoid receptor gene DNA methylation and cortisol output in relation to lifestyle, psychological distress, and cognition in university students.

Psychoneuroendocrinology·2026
Same journal

Beyond perceived stress: Hair cortisol is linked with cognition and fatigue in black and white patients with multiple sclerosis.

Psychoneuroendocrinology·2026
Same journal

Differential expression of lymphocyte markers by neighborhood opportunity among US adults: Insights from the Midlife in the United States study.

Psychoneuroendocrinology·2026
Same journal

The effect of acute angiotensin receptor blockade on subjective and biological markers of stress response.

Psychoneuroendocrinology·2026
See all related articles

Related Experiment Video

Updated: Feb 23, 2026

Parallel Measurement of Circadian Clock Gene Expression and Hormone Secretion in Human Primary Cell Cultures
06:53

Parallel Measurement of Circadian Clock Gene Expression and Hormone Secretion in Human Primary Cell Cultures

Published on: November 11, 2016

8.9K

Epigenetic clock analysis in long-term meditators.

Raphaëlle Chaix1, Maria Jesús Alvarez-López2, Maud Fagny3

  • 1Eco-Anthropologie et Ethnobiologie, UMR 7206 CNRS, MNHN, Univ Paris Diderot, Sorbonne Paris Cité, France.

Psychoneuroendocrinology
|September 11, 2017
PubMed
Summary
This summary is machine-generated.

Meditation practice may slow biological aging. Long-term meditators showed protection against epigenetic aging, unlike controls. This suggests meditation could be a strategy for age-related diseases.

Keywords:
Biological agingBloodEpigeneticsMethylationMindfulnessStress

More Related Videos

The Use of Mouse Splenocytes to Assess Pathogen-associated Molecular Pattern Influence on Clock Gene Expression
06:50

The Use of Mouse Splenocytes to Assess Pathogen-associated Molecular Pattern Influence on Clock Gene Expression

Published on: July 24, 2018

8.0K
Combining Behavior and EEG to Study the Effects of Mindfulness Meditation on Episodic Memory
08:16

Combining Behavior and EEG to Study the Effects of Mindfulness Meditation on Episodic Memory

Published on: May 11, 2020

9.1K

Related Experiment Videos

Last Updated: Feb 23, 2026

Parallel Measurement of Circadian Clock Gene Expression and Hormone Secretion in Human Primary Cell Cultures
06:53

Parallel Measurement of Circadian Clock Gene Expression and Hormone Secretion in Human Primary Cell Cultures

Published on: November 11, 2016

8.9K
The Use of Mouse Splenocytes to Assess Pathogen-associated Molecular Pattern Influence on Clock Gene Expression
06:50

The Use of Mouse Splenocytes to Assess Pathogen-associated Molecular Pattern Influence on Clock Gene Expression

Published on: July 24, 2018

8.0K
Combining Behavior and EEG to Study the Effects of Mindfulness Meditation on Episodic Memory
08:16

Combining Behavior and EEG to Study the Effects of Mindfulness Meditation on Episodic Memory

Published on: May 11, 2020

9.1K

Area of Science:

  • Epigenetics
  • Gerontology
  • Mind-Body Medicine

Background:

  • The epigenetic clock is a biomarker of biological aging.
  • Aging is associated with cumulative stress and chronic diseases.
  • Meditation's impact on biological aging is not well understood.

Purpose of the Study:

  • To investigate if meditation practice influences the epigenetic clock.
  • To compare biological aging markers between long-term meditators and controls.
  • To explore the relationship between meditation duration and epigenetic age.

Main Methods:

  • Analysis of DNA methylome from blood cells using Illumina 450K array.
  • Estimation of Intrinsic Epigenetic Age Acceleration (IEAA) using Horvath's calculator.
  • Comparison of IEAA trajectories between meditators and meditation-naïve controls across age groups.

Main Results:

  • Intrinsic Epigenetic Age Acceleration (IEAA) was similar between groups initially.
  • Controls exhibited higher IEAA with increasing age, while meditators were protected.
  • A negative correlation was found between IEAA and years of meditation practice in the meditator group.

Conclusions:

  • Long-term meditation practice may slow the epigenetic clock.
  • Meditation could be a preventive strategy for age-related chronic diseases.
  • Further longitudinal studies are needed to confirm these findings.