Obstructive sleep apnea occurs when the muscles in the back of your throat relax too much to allow normal breathing. Central sleep apnea usually occurs in adults with other medical problems. Our Sleep Apnea Story How To Finally Sleep Again With Images Of the three obstructive sleep apnea often called osa for short is the most common. Sleep apnea apnea . Normally when you breathe in air flows in through your mouth and nose and down your throat also. Obstructive sleep apnea osa is a condition in which breathing stops involuntarily for brief periods of time during sleep. In both patient groups it is usually suspected by the primary care doctor. Sleep apnea is a potentially serious sleep disorder in which breathing repeatedly stops and starts. These muscles support structures including the back of the roof of your mouth soft palate the triangular piece of tissue hanging from the soft palate uvula the tonsils and the tongue. The main types of sleep apnea are. Additiona...