Ciavarella D, et al. - Researchers assessed whether Body Mass Index (BMI) was associated with Apnea-Hypopnea Index (AHI), mean arterial oxygen saturation (SaO₂) and Nadir SaO₂, which were all indexes defining the severity of the respiratory stress associated with Obstructive Sleep Apnea (OSA). An association of higher BMI values with lower Nadir SaO₂ during overnight polysomnography was noted. Findings suggested that since for cardiovascular diseases, hypoxia stress was a risk factor and it altered the lipid metabolism, dietary consulting ought to be recommended along with other treatment modalities for OSA.