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Obesity: a disease or a biological adaptation?
1Department of Social and Preventive Medicine, Division of Kinesiology, Laval University, Ste-Foy, Québec, Canada. angelo.tremblay@kin.msp.ulaval.ca
Summary
Obesity, while linked to health risks like diabetes, may be a biological adaptation to maintain homeostasis. Weight loss interventions must balance metabolic benefits against physiological vulnerabilities.
Area of Science:
- Physiology
- Metabolic Health
- Obesity Research
Background:
- Rising obesity prevalence is linked to metabolic complications, particularly visceral fat accumulation.
- Obesity may play a role in maintaining body homeostasis through hormonal regulation of energy balance.
- Reduced-obesity states exhibit altered energy expenditure, immune markers, and increased appetite, suggesting adaptive responses.
Purpose of the Study:
- To explore the dual nature of obesity as both a health risk and a homeostatic adaptation.
- To examine the physiological implications of excess body fat and weight loss interventions.
- To highlight the need for a balanced approach in managing obesity.
Main Methods:
- Review of physiological mechanisms underlying obesity and energy balance.
- Analysis of adaptive responses observed in reduced-obese states.
- Consideration of clinical implications for health professionals.
Main Results:
- Excess body fat, particularly visceral fat, is associated with metabolic diseases.
- Obesity can facilitate homeostasis via hormonal gradients and energy balance regulation.
- Weight loss can reduce metabolic risks but may also induce physiological vulnerabilities.
Conclusions:
- Obesity can be viewed as a biological adaptation for homeostasis rather than solely a disease.
- Interventions for obesity require careful consideration of the trade-off between metabolic health improvement and physiological adaptation.
- A personalized approach is crucial for managing obesity and its associated risks.