![]() ![]() Occasionally having to literally slap myself to keep more nodding off at the wheel. I used to yawn all the time on my 20-30 minute commute home from the previous job. You can review all the data points per day if you so choose The complete absence of airflow through the nose and mouth, despite an effort to breathe as measured at the chest and abdomen, is called an apnea event. The machine stores numerous metrics which can be used to gauge the effectiveness of the therapy itself. The partial collapse of the airway is called a hypopnea. While working to prevent events the CPAP machine also tracks the apnea-hypopnea index (AHI) which records the number of times per hour of sleep that your airway partially or completely collapses, leading to a brief arousal or a drop in blood oxygen levels. There are a few weeks there were I had to forgo my nightly therapy. Why not 356+ days of data? When you have a bad head cold that leaves you congested it’s difficult to wear the full mask comfortably. You can see in the figure above that I have 344 days of data. Thanks to a piece of open source software called SleepyHead written by Mark Watkins I can explore all those data points. ![]() I eventually became curious as to what data my physician was looking at and why couldn’t I explore that data myself. When I went to see my physician I would bring the SD card that fits inside my Phillips Respironics System One. I’ve been a hose head for more than a year now and the therapy has definitely helped me although the wife tells me I still occasionally snore. ![]()
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