Sleep apnea is the cessation of breathing that occurs moments after falling asleep and loud snoring preceded by at least 10 seconds. If this process is repeated 5 times per hour of sleep we will face the Obstructive sleep apnea. Obstruction of breathing leads to lower oxygen levels in the body that makes it difficult for the person to have a restful sleep and show signs of fatigue in the morning. Moreover, the persistence of this lack of oxygen could cause pulmonary hypertension and heart failure future right or myocarditis, making it convenient to catch it early and make appropriate tests for safe diagnosis. Therefore it is conducting a sleep study to establish a treatment that includes changing some habits (diet, alcohol withdrawal, postural changes …) and prescribing a CPAP, a pressure generator as required nasal mask that keeps the airway obstruction, obliterating snoring and promoting restful sleep. In some cases surgery may be required if there are any lesions in the respiratory tract or when use of the mask is not effective.