1ºEven if you had a very light weight apnea without hardly any breathing episodes, it will only get worse. I’ve learned this over in three years with in conclusion readings, and I knew something was going on well finally, with my third reading, I was not breathing 50 times in one hour now I might not breathe one time in an hour, and that is only maybe once a week and it is made my heart function, 75% which is really at optimal for my age at 60 and people ignore this because I don’t want to wear it it is easy can you feel the difference in just a couple days so take note wear it it’s a life changer save your life.