Kaya KS, et al. - In patients with obstructive sleep apnea (OSA), researchers examined the contribution of positive airway pressure (PAP) to olfactory function. The study sample consisted of 26 patients with OSA (mean age 50.1 [9.3] years) who scheduled for PAP treatment. This research indicated that improvements in olfactory thresholds appear to improve olfactory dysfunction in patients with OSA receiving PAP therapy. This minimizes the consequences of OSA, including progressive inflammation of the upper airway, cognitive impairment, and associated olfactory dysfunction. An important area for future research is to resolve the connections between olfactory function and PAP treatment.