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Related Concept Videos

Energy Balance01:19

Energy Balance

The human body gets energy from the three macronutrients: carbohydrates, proteins, and fats. Energy is released when the chemical bonds in the organic compounds present in the food are broken down. The energy content of food is measured in kilocalories (kcal), defined as the amount of heat required to raise the temperature of one kilogram of water by one degree Celsius. This value is determined by measuring the temperature change of the water surrounding a calorimeter after the complete...
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

Understanding Sleep

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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).
NREM Sleep
NREM sleep comprises four progressive stages that seamlessly merge:
Energy Budgets00:51

Energy Budgets

Organisms must balance energy intake with the energy required for growth, maintenance and reproduction. These trade-offs result in a variety of survivorship and reproductive strategies, including semelparity and iteroparity. Semelparous species, like annual plants, have only one reproductive episode in their lifetimes and consequently have short lifespans. Iteroparous species, by contrast, have many reproductive events during their lifetimes but have relatively few offspring. These two...
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Related Experiment Video

Updated: May 7, 2026

Through-the-Wall Blood Sampling Method to Minimize Sleep Disruption in Clinical Settings
06:39

Through-the-Wall Blood Sampling Method to Minimize Sleep Disruption in Clinical Settings

Published on: June 13, 2025

Sleep patterns, diet quality and energy balance.

Jean-Philippe Chaput1

  • 1Healthy Active Living and Obesity Research Group, Children's Hospital of Eastern Ontario Research Institute, 401 Smyth Road, Ottawa, Ontario K1H 8L1, Canada.

Physiology & Behavior
|September 21, 2013
PubMed
Summary

Insufficient sleep impacts eating behaviors, leading to increased calorie intake, poor diet quality, and excess body weight. Addressing sleep is crucial for managing obesity alongside diet and physical activity.

Keywords:
DietEating behaviorEnergyFoodObesitySleep

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Human Circadian Phenotyping and Diurnal Performance Testing in the Real World
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Human Circadian Phenotyping and Diurnal Performance Testing in the Real World

Published on: April 7, 2020

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Last Updated: May 7, 2026

Through-the-Wall Blood Sampling Method to Minimize Sleep Disruption in Clinical Settings
06:39

Through-the-Wall Blood Sampling Method to Minimize Sleep Disruption in Clinical Settings

Published on: June 13, 2025

Human Circadian Phenotyping and Diurnal Performance Testing in the Real World
10:16

Human Circadian Phenotyping and Diurnal Performance Testing in the Real World

Published on: April 7, 2020

Area of Science:

  • Nutritional Science
  • Sleep Medicine
  • Obesity Research

Background:

  • Growing evidence links sleep patterns to eating behaviors and energy balance.
  • Short sleep duration, poor quality, and late bedtimes are associated with increased food intake, poor diet quality, and excess body weight.
  • Insufficient sleep may contribute to weight gain within obesogenic environments.

Purpose of the Study:

  • To explore the multifaceted relationship between sleep, eating behaviors, and energy balance.
  • To highlight the role of sleep in the context of obesity.
  • To emphasize the need to include sleep in obesity management strategies.

Main Methods:

  • Review of existing evidence on sleep's influence on eating behaviors.
  • Discussion of proposed mechanisms linking insufficient sleep to increased caloric consumption.
  • Exploration of the interplay between food choices, sleep-promoting compounds, and sleep quality.

Main Results:

  • Insufficient sleep increases snacking, meal frequency, and preference for energy-dense foods.
  • Mechanisms include increased eating opportunities, psychological distress, heightened food reward sensitivity, disinhibited eating, increased energy needs, and hormonal changes.
  • Excess calorie intake driven by insufficient sleep is primarily hedonic, not homeostatic.

Conclusions:

  • Multiple connections exist between sleep patterns, eating behavior, and energy balance.
  • Sleep is a significant, often overlooked, factor in obesity.
  • Sleep should be integrated into lifestyle interventions for obesity management, alongside diet and physical activity.