Although OSAS is so common in the population, it is estimated that 75-80% of subjects are not identified as having this condition. One of the main problems of obstructive sleep apnea syndrome is the fact that it is underdiagnosed, that is, it is not always discovered immediately because people may not realize they have it. Upon awakening, in fact, there is no memory of the interruptions in breathing that occurred during the night, unless someone who sleeps next to them does not point it out. Furthermore, excessive daytime sleepiness, the main symptom of OSAS, is a condition symptom that many people have difficulty perceiving or otherwise interpreting due to the fact that they easily confuse it with fatigue. Generally, it is the partner who raises the problem. as worried about habitual and very intense snoring, accompanied by episodes of breathing pauses.