The three types of sleep apnea disorders result from faulty brain signals. In Central sleep apnea the brain does not correctly signal the diaphragm to move so breathing stops. In Obstructive sleep apnea the airway is obstructed so no air enters the lungs.
There are three types of Sleep Apnea, Central Sleep apnea (CSA), Obstructive Sleep Apnea (OSA), and Mixed Sleep Apnea, which consists of both CSA and OSA.
With Central Sleep apnea come serious health problems such as heart disease, altitude problems etc. With Obstructive Sleep Apnea the causes are physical like deviated septum, swollen turbinates, long or large uvula. Even a limp tongue can obstruct breathing as well as a relaxed throat that collapses, during sleep, and results in difficult breathing.