Saumya Pandey
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Written By: saumya pandey | Updated : November 16, 2023 4:01 PM IST
Circadian harmony plays a pivotal role in our journey to optimal health.
Obesity, defined by a Body Mass Index (BMI) of 30 or more, carries health risks such as high blood pressure and Type 2 diabetes. Understanding the nuances of energy metabolism in individuals with obesity can provide valuable insights into developing targeted interventions for these health concerns. A new research discusses the internal body symphony. The research from Oregon Health & Science Universitysheds light on the intricate relationship between weight, energy expenditure, and circadian rhythms. The study, published in the journal Obesity, reveals that individuals with a healthy weight tend to burn more energy during the day when most people are active, while those with obesity exhibit heightened energy expenditure during the night, aligning with sleep patterns.
The study uncovered surprising disparities in energy usage between individuals with a healthy weight and those with obesity. Those with obesity displayed a notable increase in insulin levels during the day, suggesting heightened efforts by the body to process glucose, a key energy source. The researchers express uncertainty about whether burning less energy during the day contributes to obesity or is a consequence of it.
The study emphasizes the influence of daily routines, including sleep, eating, and exercise schedules, on health outcomes. Aligning these activities with the body's natural circadian rhythms is crucial for optimal health. The human body operates on a 24-hour internal clock, orchestrating various physiological changes at specific times to meet its needs throughout the day.
The research involved 30 participants who stayed at a specialized circadian research lab for six days. During this period, participants followed a meticulously designed schedule, including varying wake and sleep times. Tests involved participants exercising while wearing a mask connected to an indirect calorimeter, which measured exhaled carbon dioxide to estimate energy usage. Blood samples were also collected to gauge glucose levels in response to identical meals provided each day.
Building on these findings, the research team aims to delve into the eating habits and hunger patterns of individuals with both healthy weights and obesity. A 2013 study led by Steven A. Shea, the senior author of this research, discovered that circadian clocks naturally intensify food cravings at night. Further exploration of these aspects promises a more comprehensive understanding of the intricate connections between circadian rhythms, weight, and metabolic health.