Research has related snoring with obesity, chronic fatigue, and daytime sleepiness.
Snoring is due to vibration of soft tissues of the upper airway, which in turn is caused by turbulent airflow created by narrowing of one or more cross sectional areas in the upper airway.
No universally accepted standard for measuring snoring has been developed. Snoring has been subcategorized into "Primary Snoring", which occurs without obstructive events, and "Secondary Snoring", a component of upper airway resistance syndrome.
Researchers from the Naval Medical Center San Diego, San Diego, will be presenting their findings at the 109th Annual Meeting & OTO EXPO of the American Academy of Otolaryngology—Head and Neck Surgery Foundation, being held September 25-28, 2005, at Los Angeles.
The research result shows that a strong relationship exists between a history of snoring and complaints of daytime sleepiness (80 percent), obesity (73 percent), and chronic fatigue (78 percent). By contrast, only 42-48 percent of patients without these symptoms complain of snoring. In three multiple regression analyses, percent of time snoring, average loudness, and peak loudness are all significantly predicted by AHI (Apnea Hypopnea Index), BMI, and age. Daytime sleepiness was strongly predicted by percent time snoring, weakly by average loudness, and not at all by peak loudness.