How Actually Sleep Apnea Occur

Sleep apnea is a chronic medical condition where the affected person repeatedly stops breathing during sleep.The affected person may stop breathing for at least 10 second.In this period of time, the level of oxygen transport to the brain will be drop.Sleep apnea generally can be caused by obstruction of the upper airway and a failure of the brain to initiate a breath.Obstruction of the upper airway contributed to obstructive sleep apnea whereas failure of the brain to initiate a breath resulting in central sleep apnea .

Among this two type of sleep apnea,the most common type is obstructive sleep apnea. Its means that you are unable to get enough air through your mouth and nose into your lungs. When that occurs, the oxygen's amount in your blood may drop. Normal breaths resume with a snort or choking sound. People with sleep apnea often snore loudly. However, not everyone who snores has sleep apnea.



Initially, partial obstruction may occur and lead to snoring. As tissues collapse further or the patient rolls over on his or her back, the airway may become completely obstructed. Whether the obstruction is incomplete (hypopnea) or total (apnea), the patient struggles to breathe and is aroused from sleep. Often, arousals are only partial and are unrecognized by the patient, even if they occur hundreds of times a night. The obstructive episodes are often associated with a reduction in oxyhemoglobin saturation.