CONDITIONS

Obstructive sleep apnoea

Obstructive sleep apnoea (OSA) is a sleep disorder where breathing repeatedly stops and starts due to throat muscles relaxing — strongly associated with obesity.

Sleep apnoea causes you to stop breathing for short periods during sleep. You may snore loudly and feel tired during the day. Excess weight, especially around the neck, is the biggest risk factor. Losing weight often improves or resolves sleep apnoea.

OSA is defined by an apnoea-hypopnoea index (AHI) ≥5 events per hour. Obesity is the strongest risk factor, with a 10% weight gain increasing AHI by approximately 32%. Conversely, 10% weight loss reduces AHI by 26%.

Weight management is recommended as a core treatment for OSA alongside CPAP therapy. Sustained weight loss can reduce OSA severity and cardiovascular risk.

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Medical Disclaimer

This library is for general education and does not replace individual assessment by a qualified healthcare professional. Always consult a doctor for medical advice, diagnosis, or treatment.

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