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2 clusters · 3 sources · 28 days · First seen · Last updated
Biological mechanisms of obesity and weight regain
Overview
Scientific research is increasingly characterizing obesity as a chronic disease driven by biological defense mechanisms rather than willpower. Studies indicate that the brain and body may attempt to protect stored fat through a “defended body weight” system. This process involves hormonal shifts, such as falling leptin levels and rising ghrelin, which increase appetite and reduce energy expenditure.
Recent findings suggest these biological drivers may persist even after weight loss. Research from the University of Copenhagen and UT Southwestern Medical Center highlights how the body can “remember” a previous heavier set point. Further studies involving mice suggest that obesity may leave lasting changes at a cellular level, specifically within adipose tissue macrophages. These changes, involving mRNA splicing and protein synthesis, do not appear to reverse immediately after weight loss, providing insight into why approximately 80% of individuals may experience a “rebound effect” within three years.
Entities
Frankie Heyward · Evan Rosen · University of Copenhagen · Ozempic · Wegovy
Timeline
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11 days ago
[HEALTH] 3 sourcesScience identifies biological drivers behind obesity and weight regainScientific research indicates obesity is a chronic biological disease. Mechanisms like hormonal shifts and cellular changes in adipose tissue macrophages make weight maintenance difficult, often leading to a 'v
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about 1 month ago
[HEALTH] 3 sourcesWeight Regain Linked to Brain's Defense Mechanism, New Research ShowsBrain and hormonal mechanisms that defend body fat cause increased hunger and lower energy use after dieting, leading to weight regain; mouse studies confirm persistent hyperphagia, while human research links a
Sources
diariodesalud.com.do · elfamaillense.com.ar · laquotidienne.fr