The reciprocal interaction between obesity and obstructive sleep apnoea.

Area of Science:

• Sleep Medicine
• Metabolic Disorders
• Respiratory Physiology

Background:

• Obesity is a primary risk factor for obstructive sleep apnea (OSA), impacting airway structure and respiratory control.
• The traditional view posits a one-way relationship where obesity causes OSA.
• Emerging research suggests a potential bidirectional link, with OSA possibly contributing to obesity development.

Purpose of the Study:

• To explore the hypothesis that obstructive sleep apnea (OSA) may contribute to the development and exacerbation of obesity.
• To review the mechanisms through which OSA might influence weight gain and impede weight loss.
• To highlight the need for further research into the complex interplay between OSA and obesity.

Main Methods:

• Literature review and synthesis of existing research on the relationship between OSA and obesity.
• Analysis of proposed pathophysiological pathways linking OSA to metabolic dysfunction.
• Examination of evidence regarding the impact of OSA on energy balance and appetite regulation.

Main Results:

• Obstructive sleep apnea (OSA) may influence obesity through altered energy expenditure, disrupted dietary habits, and neurohormonal changes affecting satiety.
• Fragmented sleep associated with OSA can impact sleep duration and metabolic regulation.
• Evidence suggests a feedback loop where OSA contributes to the obese state, complicating weight management.

Conclusions:

• While obesity is a known cause of OSA, OSA itself may play a role in the development and maintenance of obesity.
• Current evidence does not confirm that OSA treatment directly leads to weight loss.
• Further investigation is warranted to fully understand the reciprocal relationship between OSA and obesity and its clinical implications for weight management.