Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Insufficient Sleep and Sleep Deprivation

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.
Sleep deprivation is a more severe form of sleep loss...

Stages of Sleep

Stages of Sleep

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...

Reducing Line Loss

Reducing Line Loss

In a three-phase circuit, line loss is an indicator of energy dissipated as heat due to the resistance of transmission lines. To address this, incorporating transformers into the system—a step-up transformer at the source and a step-down transformer at the load—is a strategic solution. Two three-phase transformers are introduced to improve this.
With a step-up transformer at the source, the voltage is increased, thereby reducing the current in the transmission lines since power loss in...

Understanding Sleep

Understanding Sleep

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.
The circadian rhythm, a nearly 24-hour cycle, is deeply influenced by environmental light cues. Light exposure directly affects the hypothalamus, which in turn regulates...

Sleep Apnea

Sleep Apnea

Sleep apnea is a condition where breathing stops intermittently during sleep, often leading to significant health issues. Each episode can last from 10 to 20 seconds or more and is frequently accompanied by a brief arousal from sleep. This disturbance, largely unnoticed by the individual, can lead to severe daytime fatigue. Commonly, individuals seek help after being informed by their partners about loud snoring and noticeable breathing pauses during sleep.
The condition is more prevalent among...

Sleepwalking and Sleep Talking

Sleepwalking and Sleep Talking

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.
Factors that increase the likelihood of sleepwalking include sleep deprivation and alcohol consumption. Contrary to common beliefs, it is safe...

You might also read

Related Articles

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

Sort by

Same author

The Effects of a Six-week Exercise Program on Heart Rate Variability in Adults with and Without Obstructive Sleep Apnea.

Sleep and biological rhythms·2026

Same author

Longitudinal association of dietary spermidine with hepatic function indexes and cardiometabolic traits in older adults with metabolic syndrome.

European journal of nutrition·2026

Same author

Association of alcohol consumption with circulating biomarkers of atrial fibrillation-related pathways in a population at high cardiometabolic risk.

The British journal of nutrition·2026

Same author

Effect of Omega-3 Fatty Acid Intake on Circulating Biomarkers of Atrial Fibrillation-Related Pathways in the PREDIMED-Plus Study.

Nutrients·2026

Same author

Nut Consumption and Long-Term Risk of All-Cause Dementia: Preliminary Findings from Three Prospective Cohort Studies.

Nutrients·2026

Same author

Area-Level Socioeconomic Inequalities in Adiposity among Older Adults: the Moderating Effect of Neighborhood Walkability.

Journal of urban health : bulletin of the New York Academy of Medicine·2026

Search research articles

Related Experiment Video

Updated: Jan 23, 2026

Noninvasive, High-throughput Determination of Sleep Duration in Rodents

Noninvasive, High-throughput Determination of Sleep Duration in Rodents

Published on: April 18, 2018

High sleep variability predicts a blunted weight loss response and short sleep duration a reduced decrease in waist

Christopher Papandreou^1,2,3,4, Mónica Bulló^1,2,3,4, Andrés Díaz-López^1,2,3,4

¹Departament de Bioquímica i Biotecnologia, Unitat de Nutrició, Universitat Rovira i Virgili, Reus, Spain.

International Journal of Obesity (2005)

|June 21, 2019

Summary

Consistent sleep duration and adequate sleep are key for successful weight loss. Less sleep variability and sufficient sleep duration enhance lifestyle intervention effectiveness for reducing adiposity.

More Related Videos

Quantitative Measurement of the Immune Response and Sleep in Drosophila

Quantitative Measurement of the Immune Response and Sleep in Drosophila

Published on: December 4, 2012

The Sleep Nullifying Apparatus: A Highly Efficient Method of Sleep Depriving Drosophila

The Sleep Nullifying Apparatus: A Highly Efficient Method of Sleep Depriving Drosophila

Published on: December 14, 2020

Related Experiment Videos

Last Updated: Jan 23, 2026

Noninvasive, High-throughput Determination of Sleep Duration in Rodents

Noninvasive, High-throughput Determination of Sleep Duration in Rodents

Published on: April 18, 2018

Quantitative Measurement of the Immune Response and Sleep in Drosophila

Quantitative Measurement of the Immune Response and Sleep in Drosophila

Published on: December 4, 2012

The Sleep Nullifying Apparatus: A Highly Efficient Method of Sleep Depriving Drosophila

The Sleep Nullifying Apparatus: A Highly Efficient Method of Sleep Depriving Drosophila

Published on: December 14, 2020

Area of Science:

Sleep science
Obesity research
Preventive medicine

Background:

Investigating the impact of sleep patterns on weight management outcomes.
Examining the role of sleep duration and variability in lifestyle intervention success.
Addressing the unknown relationship between sleep characteristics and adiposity reduction.

Purpose of the Study:

To compare 12-month changes in weight and adiposity measures.
To assess differences between short/adequate sleep duration groups.
To evaluate low/high sleep variability effects in a lifestyle intervention trial.

Main Methods:

Prospective analysis of 1986 overweight/obese adults with metabolic syndrome.
Utilized accelerometry for sleep duration and variability assessment.
Analyzed changes in weight, BMI, and waist circumference over 12 months.

Main Results:

Higher sleep variability was associated with less weight and BMI reduction.
Participants with higher sleep variability showed poorer weight loss outcomes.
Short sleep duration (<6 hours) was linked to smaller reductions in waist circumference.

Conclusions:

Less variability in sleep duration improves lifestyle intervention success.
Adequate sleep duration is associated with greater adiposity reduction.
Optimizing sleep patterns can enhance weight management strategies.