Sleep apnea is sleep trouble that prevents you from comfortably resting at night. It is caused by a hindrance in the airway, resulting in disrupted sleep and reduced oxygen intake. In people suffering from obstructive sleep apnea, the condition is caused because of blockage in the throat muscles. In central sleep apnea, the problem results from the brain’s failure to signal the respiratory system to breathe. The third is mixed sleep apnea, where people have both OSA and CSA. For more:https://www.resmed.co.in/blogs/obstructive-sleep-apnea